我如何使该表格在文档中居中并固定？

Question

减小字体大小\small并通过加载减少边距几何学并具有合理的利润。

不过，我建议使用以下规则来改进布局：书签并删除垂直线。参见示例 2。此外，我建议将标题分成两行，或手动调整（均衡）列之间的空间。

示例 3 我拆分了标题并使用表格型计算列的最佳宽度。此外，左右边距增加，表格宽度缩小以使列之间的空间更均匀。表格很长，几乎不可能挤进顶部和底部边距之间。考虑将其分成两页。

\documentclass{article}
\usepackage[margin=2cm]{geometry}

\begin{document}

\begin{table}
\centering\small
\begin{tabular}{|c|c|c|c|c|c|c|}
\hline 
Sr. No & R (kpc) &  $v_rot$ (km/s) & $v_rot-\sigma$ & $v_rot+\sigma$ & $v_rot-st. error$ & $v_rot+st. error$ \\ 
\hline 
1 & 0.1000000
 & 183.93909
 & 183.93909
 & 183.93909
 & 183.93909
 & 183.93909
 \\ 
\hline 
2 & 0.1200000
 & 190.70982
 & 180.44495
 & 200.97470
 & 178.51875
 & 202.90089
 \\ 
\hline 
3 & 0.1440000
 & 204.14069
 & 181.50659
 & 226.77478
 & 182.33299
 & 225.94838
 \\ 
\hline 
4 & 0.1728000
 & 207.60068
 & 203.02751
 & 212.17384
 & 203.40028
 & 211.80107
 \\ 
\hline 
5 & 0.2073600
 & 210.18828
 & 206.24573
 & 214.13083
 & 206.92996
 & 213.44659
 \\ 
\hline 
6 & 0.2488321
 & 213.51242
 & 209.29480
 & 217.73004
 & 210.32246
 & 216.70238
 \\ 
\hline 
7 & 0.2985985
 & 217.20825
 & 213.39551
 & 221.02100
 & 214.58551
 & 219.83099
 \\ 
\hline 
8 & 0.3583182
 & 219.67349
 & 217.49274
 & 221.85425
 & 218.30295
 & 221.04404
 \\ 
\hline 
9 & 0.4299819
 & 219.35750
 & 217.16428
 & 221.55072
 & 218.09828
 & 220.61671
 \\ 
\hline 
10 & 0.5159783
 & 216.16325
 & 212.42326
 & 219.90324
 & 214.20239
 & 218.12412
 \\ 
\hline 
11 & 0.6191739
 & 213.66953
 & 202.72714
 & 224.61191
 & 208.54335
 & 218.79570
 \\ 
\hline 
12 & 0.7430087
 & 219.49203
 & 196.89320
 & 242.09087
 & 210.87085
 & 228.11322
 \\ 
\hline 
13 & 0.8916104
 & 221.29033
 & 190.59332
 & 251.98734
 & 210.06566
 & 232.51500
 \\ 
\hline 
14 & 1.0699327
 & 235.33232
 & 179.62076
 & 291.04388
 & 213.18643
 & 257.47821
 \\ 
\hline 
15 & 1.2839192
 & 242.83345
 & 185.79965
 & 299.86725
 & 219.53412
 & 266.13278
 \\ 
\hline 
16 & 1.5407032
 & 248.29765
 & 195.89536
 & 300.69995
 & 228.28511
 & 268.31018
 \\ 
\hline 
17 & 1.8488438
 & 252.87955
 & 202.31192
 & 303.44717
 & 234.40387
 & 271.35522
 \\ 
\hline 
18 & 2.2186127
 & 245.01344
 & 209.83757
 & 280.18933
 & 232.94853
 & 257.07834
 \\ 
\hline 
19 & 2.6623352
 & 238.99704
 & 222.48454
 & 255.50954
 & 233.48685
 & 244.50723
 \\ 
\hline 
20 & 3.1948025
 & 236.55078
 & 227.31772
 & 245.78384
 & 233.53505
 & 239.56651
 \\ 
\hline 
21 & 3.8337631
 & 228.43219
 & 207.30084
 & 249.56354
 & 222.44080
 & 234.42358
 \\ 
\hline 
22 & 4.6005158
 & 222.71205
 & 192.34129
 & 253.08281
 & 215.21762
 & 230.20648
 \\ 
\hline 
23 & 5.5206194
 & 229.12407
 & 200.08731
 & 258.16083
 & 222.72687
 & 235.52127
 \\ 
\hline 
24 & 6.6247439
 & 243.19193
 & 219.59961
 & 266.78424
 & 237.93997
 & 248.44388
 \\ 
\hline 
25 & 7.9496927
 & 255.37874
 & 236.88005
 & 273.87744
 & 251.45024
 & 259.30725
 \\ 
\hline 
26 & 9.5396309
 & 261.36807
 & 246.69359
 & 276.04254
 & 258.54010
 & 264.19604
 \\ 
\hline 
27 & 11.447558
 & 263.48981
 & 252.04210
 & 274.93750
 & 261.36115
 & 265.61847
 \\ 
\hline 
28 & 13.737070
 & 262.79474
 & 252.75514
 & 272.83435
 & 261.02304
 & 264.56644
 \\ 
\hline 
29 & 16.484486
 & 257.34476
 & 245.18245
 & 269.50705
 & 255.36995
 & 259.31955
 \\ 
\hline 
30 & 19.781384
 & 246.14032
 & 232.69463
 & 259.58600
 & 244.15141
 & 248.12923
 \\ 
\hline 
31 & 23.737661
 & 236.51070
 & 224.78146
 & 248.23993
 & 234.93050
 & 238.09090
 \\ 
\hline 
32 & 28.485193
 & 232.33522
 & 215.75822
 & 248.91222
 & 230.22922
 & 234.44122
 \\ 
\hline 
33 & 34.182232
 & 233.52969
 & 206.17625
 & 260.88312
 & 229.70399
 & 237.35539
 \\ 
\hline 
34 & 41.018681
 & 230.44406
 & 178.01166
 & 282.87646
 & 220.62897
 & 240.25916
 \\ 
\hline 
35 & 49.222420
 & 237.06894
 & 127.68766
 & 346.45023
 & 213.14537
 & 260.99249
 \\ 
\hline 
36 & 59.066906
 & 249.44296
 & 114.89056
 & 383.99536
 & 222.99591
 & 275.89001
 \\ 
\hline 
37 & 70.880295
 & 218.48878
 & 86.133835
 & 350.84375
 & 193.83218
 & 243.14539
 \\ 
\hline 
38 & 85.056351
 & 206.60251
 & 71.599976
 & 341.60504
 & 179.34451
 & 233.86050
 \\ 
\hline 
39 & 102.06763
 & 213.00215
 & 80.545822
 & 345.45850
 & 183.68088
 & 242.32343
 \\ 
\hline 
40 & 122.48116
 & 197.38297
 & 91.656158
 & 303.10977
 & 174.02448
 & 220.74146
 \\ 
\hline 
41 & 146.97740
 & 177.52109
 & 95.759117
 & 259.28305
 & 160.85951
 & 194.18266
 \\ 
\hline 
42 & 176.37288
 & 165.32518
 & 90.673500
 & 239.97687
 & 149.61955
 & 181.03081
 \\ 
\hline 
43 & 211.64746
 & 165.13419
 & 88.205139
 & 242.06323
 & 146.40096
 & 183.86742
 \\ 
\hline 
44 & 253.97696
 & 160.78725
 & 83.387566
 & 238.18692
 & 138.06747
 & 183.50702
 \\ 
\hline 
45 & 304.77237
 & 151.10190
 & 76.308479
 & 225.89532
 & 123.22250
 & 178.98131
 \\ 
\hline 
46 & 365.72687
 & 121.97353
 & 25.493340
 & 218.45374
 & 78.542664
 & 165.40440
 \\ 
\hline 
47 & 438.87222
 & 168.30278
 & 42.566956
 & 294.03860
 & 116.82118
 & 219.78438
 \\ 
\hline 
48 & 526.64673
 & 200.54523
 & 77.195190
 & 323.89526
 & 147.59630
 & 253.49416
 \\ 
\hline 
49 & 631.97607
 & 238.97273
 & 91.137421
 & 386.80804
 & 202.77776
 & 275.16772
 \\ 
\hline 
50 & 758.37134
 & 248.06854
 & 103.06313
 & 393.07397
 & 228.35280
 & 267.78430
 \\ 
\hline 
51 & 910.04559
 & 250.37715
 & 109.02409
 & 391.73022
 & 227.71413
 & 273.04016
 \\ 
\hline 
52 & 1092.0548
 & 241.89972
 & 103.24272
 & 380.55670
 & 202.86862
 & 280.93082
 \\ 
\hline 
53 & 1310.4658
 & 235.03870
 & 131.55847
 & 338.51892
 & 188.53064
 & 281.54675
 \\ 
\hline 
54 & 1572.5590
 & 332.73450
 & 223.23077
 & 442.23822
 & 278.62488
 & 386.84412
 \\ 
\hline 
55 & 1887.0709
 & 414.94214
 & 345.36310
 & 484.52118
 & 387.01141
 & 442.87286
 \\ 
\hline 
\end{tabular} 
\end{table}

\end{document}

示例 2 – booktabs

\documentclass{article}
\usepackage[margin=2cm]{geometry}
\usepackage[table]{xcolor}
\usepackage{booktabs, array}
\setlength{\tabcolsep}{0.5em}
%\setlength{\extrarowheight}{1pt}


\begin{document}

\begin{table}
\centering\small
\begin{tabular}{@{}rrrrrrr@{}}
\toprule
\textsc{sno} & R (kpc) &  $v_rot$ (km/s) & $v_rot-\sigma$ & $v_rot+\sigma$ & $v_rot-st. error$ & $v_rot+st. error$ \\ 
\midrule
\arrayrulecolor{lightgray}
1 & 0.1000000
 & 183.93909
 & 183.93909
 & 183.93909
 & 183.93909
 & 183.93909
 \\ 
2 & 0.1200000
 & 190.70982
 & 180.44495
 & 200.97470
 & 178.51875
 & 202.90089
 \\ 
3 & 0.1440000
 & 204.14069
 & 181.50659
 & 226.77478
 & 182.33299
 & 225.94838
 \\ 
4 & 0.1728000
 & 207.60068
 & 203.02751
 & 212.17384
 & 203.40028
 & 211.80107
 \\ 
5 & 0.2073600
 & 210.18828
 & 206.24573
 & 214.13083
 & 206.92996
 & 213.44659
 \\
\midrule 
%\addlinespace[0.5ex]
6 & 0.2488321
 & 213.51242
 & 209.29480
 & 217.73004
 & 210.32246
 & 216.70238
 \\ 
7 & 0.2985985
 & 217.20825
 & 213.39551
 & 221.02100
 & 214.58551
 & 219.83099
 \\ 
8 & 0.3583182
 & 219.67349
 & 217.49274
 & 221.85425
 & 218.30295
 & 221.04404
 \\ 
9 & 0.4299819
 & 219.35750
 & 217.16428
 & 221.55072
 & 218.09828
 & 220.61671
 \\ 
10 & 0.5159783
 & 216.16325
 & 212.42326
 & 219.90324
 & 214.20239
 & 218.12412
 \\ 
\midrule 
%\addlinespace[0.5ex]
11 & 0.6191739
 & 213.66953
 & 202.72714
 & 224.61191
 & 208.54335
 & 218.79570
 \\ 
12 & 0.7430087
 & 219.49203
 & 196.89320
 & 242.09087
 & 210.87085
 & 228.11322
 \\ 
13 & 0.8916104
 & 221.29033
 & 190.59332
 & 251.98734
 & 210.06566
 & 232.51500
 \\ 
14 & 1.0699327
 & 235.33232
 & 179.62076
 & 291.04388
 & 213.18643
 & 257.47821
 \\ 
15 & 1.2839192
 & 242.83345
 & 185.79965
 & 299.86725
 & 219.53412
 & 266.13278
 \\ 
\midrule 
%\addlinespace[0.5ex]
16 & 1.5407032
 & 248.29765
 & 195.89536
 & 300.69995
 & 228.28511
 & 268.31018
 \\ 
17 & 1.8488438
 & 252.87955
 & 202.31192
 & 303.44717
 & 234.40387
 & 271.35522
 \\ 
18 & 2.2186127
 & 245.01344
 & 209.83757
 & 280.18933
 & 232.94853
 & 257.07834
 \\ 
19 & 2.6623352
 & 238.99704
 & 222.48454
 & 255.50954
 & 233.48685
 & 244.50723
 \\ 
20 & 3.1948025
 & 236.55078
 & 227.31772
 & 245.78384
 & 233.53505
 & 239.56651
 \\ 
\midrule 
%\addlinespace[0.5ex]
21 & 3.8337631
 & 228.43219
 & 207.30084
 & 249.56354
 & 222.44080
 & 234.42358
 \\ 
22 & 4.6005158
 & 222.71205
 & 192.34129
 & 253.08281
 & 215.21762
 & 230.20648
 \\ 
23 & 5.5206194
 & 229.12407
 & 200.08731
 & 258.16083
 & 222.72687
 & 235.52127
 \\ 
24 & 6.6247439
 & 243.19193
 & 219.59961
 & 266.78424
 & 237.93997
 & 248.44388
 \\ 
25 & 7.9496927
 & 255.37874
 & 236.88005
 & 273.87744
 & 251.45024
 & 259.30725
 \\ 
\midrule 
%\addlinespace[0.5ex]
26 & 9.5396309
 & 261.36807
 & 246.69359
 & 276.04254
 & 258.54010
 & 264.19604
 \\ 
27 & 11.447558
 & 263.48981
 & 252.04210
 & 274.93750
 & 261.36115
 & 265.61847
 \\ 
28 & 13.737070
 & 262.79474
 & 252.75514
 & 272.83435
 & 261.02304
 & 264.56644
 \\ 
29 & 16.484486
 & 257.34476
 & 245.18245
 & 269.50705
 & 255.36995
 & 259.31955
 \\ 
30 & 19.781384
 & 246.14032
 & 232.69463
 & 259.58600
 & 244.15141
 & 248.12923
 \\ 
\midrule 
%\addlinespace[0.5ex]
31 & 23.737661
 & 236.51070
 & 224.78146
 & 248.23993
 & 234.93050
 & 238.09090
 \\ 
32 & 28.485193
 & 232.33522
 & 215.75822
 & 248.91222
 & 230.22922
 & 234.44122
 \\ 
33 & 34.182232
 & 233.52969
 & 206.17625
 & 260.88312
 & 229.70399
 & 237.35539
 \\ 
34 & 41.018681
 & 230.44406
 & 178.01166
 & 282.87646
 & 220.62897
 & 240.25916
 \\ 
35 & 49.222420
 & 237.06894
 & 127.68766
 & 346.45023
 & 213.14537
 & 260.99249
 \\ 
\midrule 
%\addlinespace[0.5ex]
36 & 59.066906
 & 249.44296
 & 114.89056
 & 383.99536
 & 222.99591
 & 275.89001
 \\ 
37 & 70.880295
 & 218.48878
 & 86.133835
 & 350.84375
 & 193.83218
 & 243.14539
 \\ 
38 & 85.056351
 & 206.60251
 & 71.599976
 & 341.60504
 & 179.34451
 & 233.86050
 \\ 
39 & 102.06763
 & 213.00215
 & 80.545822
 & 345.45850
 & 183.68088
 & 242.32343
 \\ 
40 & 122.48116
 & 197.38297
 & 91.656158
 & 303.10977
 & 174.02448
 & 220.74146
 \\ 
\midrule 
%\addlinespace[0.5ex]
41 & 146.97740
 & 177.52109
 & 95.759117
 & 259.28305
 & 160.85951
 & 194.18266
 \\ 
42 & 176.37288
 & 165.32518
 & 90.673500
 & 239.97687
 & 149.61955
 & 181.03081
 \\ 
43 & 211.64746
 & 165.13419
 & 88.205139
 & 242.06323
 & 146.40096
 & 183.86742
 \\ 
44 & 253.97696
 & 160.78725
 & 83.387566
 & 238.18692
 & 138.06747
 & 183.50702
 \\ 
45 & 304.77237
 & 151.10190
 & 76.308479
 & 225.89532
 & 123.22250
 & 178.98131
 \\ 
\midrule 
%\addlinespace[0.5ex]
46 & 365.72687
 & 121.97353
 & 25.493340
 & 218.45374
 & 78.542664
 & 165.40440
 \\ 
47 & 438.87222
 & 168.30278
 & 42.566956
 & 294.03860
 & 116.82118
 & 219.78438
 \\ 
48 & 526.64673
 & 200.54523
 & 77.195190
 & 323.89526
 & 147.59630
 & 253.49416
 \\ 
49 & 631.97607
 & 238.97273
 & 91.137421
 & 386.80804
 & 202.77776
 & 275.16772
 \\ 
50 & 758.37134
 & 248.06854
 & 103.06313
 & 393.07397
 & 228.35280
 & 267.78430
 \\ 
\midrule 
%\addlinespace[0.5ex]
51 & 910.04559
 & 250.37715
 & 109.02409
 & 391.73022
 & 227.71413
 & 273.04016
 \\ 
52 & 1092.0548
 & 241.89972
 & 103.24272
 & 380.55670
 & 202.86862
 & 280.93082
 \\ 
53 & 1310.4658
 & 235.03870
 & 131.55847
 & 338.51892
 & 188.53064
 & 281.54675
 \\ 
54 & 1572.5590
 & 332.73450
 & 223.23077
 & 442.23822
 & 278.62488
 & 386.84412
 \\ 
55 & 1887.0709
 & 414.94214
 & 345.36310
 & 484.52118
 & 387.01141
 & 442.87286
 \\ \arrayrulecolor{black}
\bottomrule
\end{tabular} 
\end{table}

\end{document}

示例 3 – tabularx 和拆分标题

\documentclass{article}
\usepackage[left=3.5cm, right=3.5cm, top=1.2cm, bottom=2.5cm]{geometry}
\usepackage[table]{xcolor}
\usepackage{booktabs, array, tabularx}
\setlength{\tabcolsep}{0.5em}
%\setlength{\extrarowheight}{1pt}

% Multi-line left-aligned text with manual line breaks.
% The base line of the whole is at the top row.
% % Borrowed from https://tex.stackexchange.com/a/347138/9632
\newcommand*{\tstack}[1]{%
  \begingroup
    \renewcommand*{\arraystretch}{0.85}%
    \begin{tabular}[b]{@{}>{\centering\arraybackslash}p{\hsize}@{}}#1\end{tabular}%
  \endgroup
}

\newcolumntype{R}{>{\raggedleft\arraybackslash}X}

\begin{document}

\begin{table}
\centering\small
\begin{tabularx}{0.9\linewidth}{@{}r*{6}{R}@{}}
\toprule
\textsc{sno} & R (kpc) &  \tstack{$v_rot$ \\$(km/s$)} & \tstack{$v_rot$\\ $-\sigma$ }& \tstack{$v_rot$\\ $+\sigma$} & \tstack{$v_rot$\\ $-st. error$} & \tstack{$v_rot$ \\ $+st. error$} \\ 
\midrule
\arrayrulecolor{lightgray}
1 & 0.1000000
 & 183.93909
 & 183.93909
 & 183.93909
 & 183.93909
 & 183.93909
 \\ 
2 & 0.1200000
 & 190.70982
 & 180.44495
 & 200.97470
 & 178.51875
 & 202.90089
 \\ 
3 & 0.1440000
 & 204.14069
 & 181.50659
 & 226.77478
 & 182.33299
 & 225.94838
 \\ 
4 & 0.1728000
 & 207.60068
 & 203.02751
 & 212.17384
 & 203.40028
 & 211.80107
 \\ 
5 & 0.2073600
 & 210.18828
 & 206.24573
 & 214.13083
 & 206.92996
 & 213.44659
 \\
\midrule 
%\addlinespace[0.5ex]
6 & 0.2488321
 & 213.51242
 & 209.29480
 & 217.73004
 & 210.32246
 & 216.70238
 \\ 
7 & 0.2985985
 & 217.20825
 & 213.39551
 & 221.02100
 & 214.58551
 & 219.83099
 \\ 
8 & 0.3583182
 & 219.67349
 & 217.49274
 & 221.85425
 & 218.30295
 & 221.04404
 \\ 
9 & 0.4299819
 & 219.35750
 & 217.16428
 & 221.55072
 & 218.09828
 & 220.61671
 \\ 
10 & 0.5159783
 & 216.16325
 & 212.42326
 & 219.90324
 & 214.20239
 & 218.12412
 \\ 
\midrule 
%\addlinespace[0.5ex]
11 & 0.6191739
 & 213.66953
 & 202.72714
 & 224.61191
 & 208.54335
 & 218.79570
 \\ 
12 & 0.7430087
 & 219.49203
 & 196.89320
 & 242.09087
 & 210.87085
 & 228.11322
 \\ 
13 & 0.8916104
 & 221.29033
 & 190.59332
 & 251.98734
 & 210.06566
 & 232.51500
 \\ 
14 & 1.0699327
 & 235.33232
 & 179.62076
 & 291.04388
 & 213.18643
 & 257.47821
 \\ 
15 & 1.2839192
 & 242.83345
 & 185.79965
 & 299.86725
 & 219.53412
 & 266.13278
 \\ 
\midrule 
%\addlinespace[0.5ex]
16 & 1.5407032
 & 248.29765
 & 195.89536
 & 300.69995
 & 228.28511
 & 268.31018
 \\ 
17 & 1.8488438
 & 252.87955
 & 202.31192
 & 303.44717
 & 234.40387
 & 271.35522
 \\ 
18 & 2.2186127
 & 245.01344
 & 209.83757
 & 280.18933
 & 232.94853
 & 257.07834
 \\ 
19 & 2.6623352
 & 238.99704
 & 222.48454
 & 255.50954
 & 233.48685
 & 244.50723
 \\ 
20 & 3.1948025
 & 236.55078
 & 227.31772
 & 245.78384
 & 233.53505
 & 239.56651
 \\ 
\midrule 
%\addlinespace[0.5ex]
21 & 3.8337631
 & 228.43219
 & 207.30084
 & 249.56354
 & 222.44080
 & 234.42358
 \\ 
22 & 4.6005158
 & 222.71205
 & 192.34129
 & 253.08281
 & 215.21762
 & 230.20648
 \\ 
23 & 5.5206194
 & 229.12407
 & 200.08731
 & 258.16083
 & 222.72687
 & 235.52127
 \\ 
24 & 6.6247439
 & 243.19193
 & 219.59961
 & 266.78424
 & 237.93997
 & 248.44388
 \\ 
25 & 7.9496927
 & 255.37874
 & 236.88005
 & 273.87744
 & 251.45024
 & 259.30725
 \\ 
\midrule 
%\addlinespace[0.5ex]
26 & 9.5396309
 & 261.36807
 & 246.69359
 & 276.04254
 & 258.54010
 & 264.19604
 \\ 
27 & 11.447558
 & 263.48981
 & 252.04210
 & 274.93750
 & 261.36115
 & 265.61847
 \\ 
28 & 13.737070
 & 262.79474
 & 252.75514
 & 272.83435
 & 261.02304
 & 264.56644
 \\ 
29 & 16.484486
 & 257.34476
 & 245.18245
 & 269.50705
 & 255.36995
 & 259.31955
 \\ 
30 & 19.781384
 & 246.14032
 & 232.69463
 & 259.58600
 & 244.15141
 & 248.12923
 \\ 
\midrule 
%\addlinespace[0.5ex]
31 & 23.737661
 & 236.51070
 & 224.78146
 & 248.23993
 & 234.93050
 & 238.09090
 \\ 
32 & 28.485193
 & 232.33522
 & 215.75822
 & 248.91222
 & 230.22922
 & 234.44122
 \\ 
33 & 34.182232
 & 233.52969
 & 206.17625
 & 260.88312
 & 229.70399
 & 237.35539
 \\ 
34 & 41.018681
 & 230.44406
 & 178.01166
 & 282.87646
 & 220.62897
 & 240.25916
 \\ 
35 & 49.222420
 & 237.06894
 & 127.68766
 & 346.45023
 & 213.14537
 & 260.99249
 \\ 
\midrule 
%\addlinespace[0.5ex]
36 & 59.066906
 & 249.44296
 & 114.89056
 & 383.99536
 & 222.99591
 & 275.89001
 \\ 
37 & 70.880295
 & 218.48878
 & 86.133835
 & 350.84375
 & 193.83218
 & 243.14539
 \\ 
38 & 85.056351
 & 206.60251
 & 71.599976
 & 341.60504
 & 179.34451
 & 233.86050
 \\ 
39 & 102.06763
 & 213.00215
 & 80.545822
 & 345.45850
 & 183.68088
 & 242.32343
 \\ 
40 & 122.48116
 & 197.38297
 & 91.656158
 & 303.10977
 & 174.02448
 & 220.74146
 \\ 
\midrule 
%\addlinespace[0.5ex]
41 & 146.97740
 & 177.52109
 & 95.759117
 & 259.28305
 & 160.85951
 & 194.18266
 \\ 
42 & 176.37288
 & 165.32518
 & 90.673500
 & 239.97687
 & 149.61955
 & 181.03081
 \\ 
43 & 211.64746
 & 165.13419
 & 88.205139
 & 242.06323
 & 146.40096
 & 183.86742
 \\ 
44 & 253.97696
 & 160.78725
 & 83.387566
 & 238.18692
 & 138.06747
 & 183.50702
 \\ 
45 & 304.77237
 & 151.10190
 & 76.308479
 & 225.89532
 & 123.22250
 & 178.98131
 \\ 
\midrule 
%\addlinespace[0.5ex]
46 & 365.72687
 & 121.97353
 & 25.493340
 & 218.45374
 & 78.542664
 & 165.40440
 \\ 
47 & 438.87222
 & 168.30278
 & 42.566956
 & 294.03860
 & 116.82118
 & 219.78438
 \\ 
48 & 526.64673
 & 200.54523
 & 77.195190
 & 323.89526
 & 147.59630
 & 253.49416
 \\ 
49 & 631.97607
 & 238.97273
 & 91.137421
 & 386.80804
 & 202.77776
 & 275.16772
 \\ 
50 & 758.37134
 & 248.06854
 & 103.06313
 & 393.07397
 & 228.35280
 & 267.78430
 \\ 
\midrule 
%\addlinespace[0.5ex]
51 & 910.04559
 & 250.37715
 & 109.02409
 & 391.73022
 & 227.71413
 & 273.04016
 \\ 
52 & 1092.0548
 & 241.89972
 & 103.24272
 & 380.55670
 & 202.86862
 & 280.93082
 \\ 
53 & 1310.4658
 & 235.03870
 & 131.55847
 & 338.51892
 & 188.53064
 & 281.54675
 \\ 
54 & 1572.5590
 & 332.73450
 & 223.23077
 & 442.23822
 & 278.62488
 & 386.84412
 \\ 
55 & 1887.0709
 & 414.94214
 & 345.36310
 & 484.52118
 & 387.01141
 & 442.87286
 \\ \arrayrulecolor{black}
\bottomrule
\end{tabularx} 
\end{table}

\end{document}

Answer 1