我有如下数据：
No. Time Source Destination Protocol Length
1 0 192.168.6.132 192.168.6.149 RTPS 110
2 0.000008 192.168.6.132 192.168.154.1 RTPS 110
3 0.000013 192.168.6.132 192.168.221.1 RTPS 110
4 0.000021 192.168.6.132 192.168.6.149 RTPS 110
5 0.000025 192.168.6.132 192.168.154.1 RTPS 110
6 0.00003 192.168.6.132 192.168.221.1 RTPS 110
7 0.000133 192.168.6.132 192.168.6.149 RTPS 110
8 0.000149 192.168.6.132 192.168.154.1 RTPS 110
9 0.000153 192.168.6.132 192.168.221.1 RTPS 110
10 0.000158 192.168.6.132 192.168.6.149 RTPS 110
11 0.000162 192.168.6.132 192.168.154.1 RTPS 110
12 0.000166 192.168.6.132 192.168.221.1 RTPS 110
13 0.000195 192.168.6.132 192.168.6.114 RTPS 106
14 0.155988 192.168.6.132 192.168.6.114 RTPS 210
15 0.156002 192.168.6.132 192.168.6.125 RTPS 210
16 0.156008 192.168.6.132 192.168.70.1 RTPS 210
17 0.156014 192.168.6.132 192.168.80.1 RTPS 210
18 0.190113 192.168.6.149 239.255.0.1 RTPS 146
19 0.191102 192.168.6.149 239.255.0.1 RTPS 146
20 0.21706 192.168.6.149 239.255.0.1 RTPS 146
21 0.26399 192.168.6.132 192.168.6.125 RTPS 210
22 0.264002 192.168.6.132 192.168.70.1 RTPS 210
23 0.264008 192.168.6.132 192.168.80.1 RTPS 210
24 0.264031 192.168.6.132 192.168.6.114 RTPS 210
25 0.323881 192.168.6.132 192.168.6.114 RTPS 106
26 0.408117 192.168.6.132 239.255.0.1 RTPS 146
27 0.418088 192.168.6.132 239.255.0.1 RTPS 146
28 0.426158 192.168.6.132 239.255.0.1 RTPS 146
29 0.435039 192.168.6.132 239.255.0.1 RTPS 146
30 0.453171 192.168.6.132 239.255.0.1 RTPS 146
31 0.455198 192.168.6.132 239.255.0.1 RTPS 146
32 0.459963 192.168.6.132 192.168.6.125 RTPS 210
33 0.459975 192.168.6.132 192.168.70.1 RTPS 210
34 0.459981 192.168.6.132 192.168.80.1 RTPS 210
35 0.459995 192.168.6.132 192.168.6.114 RTPS 210
36 0.470089 192.168.6.132 239.255.0.1 RTPS 146
37 0.569183 192.168.6.149 239.255.0.1 RTPS 146
38 0.718822 192.168.6.149 239.255.0.1 RTPS 146
39 0.736077 192.168.6.132 192.168.6.114 RTPS 202
40 0.736102 192.168.6.132 192.168.80.1 RTPS 202
41 0.73611 192.168.6.132 192.168.70.1 RTPS 202
42 0.73612 192.168.6.132 192.168.6.125 RTPS 202
43 0.765126 192.168.6.132 239.255.0.1 RTPS 146
44 0.837028 192.168.6.132 192.168.6.125 RTPS 210
45 0.837042 192.168.6.132 192.168.70.1 RTPS 210
46 0.837047 192.168.6.132 192.168.80.1 RTPS 210
47 0.837061 192.168.6.132 192.168.6.114 RTPS 210
48 0.895085 192.168.6.132 239.255.0.1 RTPS 146
49 0.919585 192.168.6.132 239.255.0.1 RTPS 146
50 0.95995 192.168.6.132 192.168.6.125 RTPS 202
51 0.959959 192.168.6.132 192.168.70.1 RTPS 202
52 0.959965 192.168.6.132 192.168.80.1 RTPS 202
53 0.959986 192.168.6.132 192.168.6.114 RTPS 202
54 0.985993 192.168.6.132 192.168.6.125 RTPS 202
55 0.98601 192.168.6.132 192.168.70.1 RTPS 202
56 0.986023 192.168.6.132 192.168.80.1 RTPS 202
57 0.986216 192.168.6.132 192.168.6.114 RTPS 202
58 0.991958 192.168.6.132 192.168.6.125 RTPS 202
59 0.991967 192.168.6.132 192.168.70.1 RTPS 202
60 0.991971 192.168.6.132 192.168.80.1 RTPS 202
61 0.991991 192.168.6.132 192.168.6.114 RTPS 202
62 1.069143 192.168.6.132 192.168.6.125 RTPS 202
63 1.069178 192.168.6.132 192.168.70.1 RTPS 202
64 1.069197 192.168.6.132 192.168.80.1 RTPS 202
65 1.069236 192.168.6.132 192.168.6.114 RTPS 202
66 1.1095 192.168.6.149 239.255.0.1 RTPS 146
67 1.109993 192.168.6.132 192.168.6.114 RTPS 202
68 1.110006 192.168.6.132 192.168.6.125 RTPS 202
69 1.110012 192.168.6.132 192.168.70.1 RTPS 202
70 1.110017 192.168.6.132 192.168.80.1 RTPS 202
71 1.176661 192.168.6.114 239.255.0.1 RTPS 822
72 1.186424 192.168.6.149 239.255.0.1 RTPS 146
73 1.24307 192.168.6.132 192.168.6.125 RTPS 110
74 1.2431 192.168.6.132 192.168.70.1 RTPS 110
75 1.24312 192.168.6.132 192.168.80.1 RTPS 110
76 1.243149 192.168.6.132 192.168.6.114 RTPS 110
77 1.307628 192.168.6.114 192.168.6.132 RTPS 106
78 1.314474 192.168.6.149 239.255.0.1 RTPS 146
79 1.344895 192.168.6.149 239.255.0.1 RTPS 146
80 1.372821 192.168.6.149 239.255.0.1 RTPS 146
81 1.395822 192.168.6.114 239.255.0.1 RTPS 146
82 1.425897 192.168.6.125 192.168.6.132 RTPS 106
83 1.802883 192.168.6.132 239.255.0.1 RTPS 890
84 1.851153 192.168.6.149 239.255.0.1 RTPS 146
85 1.878097 192.168.6.132 239.255.0.1 RTPS 890
86 1.903379 192.168.6.132 239.255.0.1 RTPS 890
87 1.998941 192.168.6.149 239.255.0.1 RTPS 146
88 1.999752 192.168.6.149 239.255.0.1 RTPS 146
89 2.010819 192.168.6.114 192.168.6.132 RTPS 218
90 2.012812 192.168.6.114 192.168.6.132 RTPS 218
91 2.029853 192.168.6.132 192.168.6.114 RTPS 110
92 2.02987 192.168.6.132 192.168.6.125 RTPS 110
93 2.029875 192.168.6.132 192.168.70.1 RTPS 110
94 2.02988 192.168.6.132 192.168.80.1 RTPS 110
95 2.048372 192.168.6.132 239.255.0.1 RTPS 146
96 2.082863 192.168.6.132 192.168.6.125 RTPS 110
97 2.082881 192.168.6.132 192.168.70.1 RTPS 110
98 2.082889 192.168.6.132 192.168.80.1 RTPS 110
99 2.082913 192.168.6.132 192.168.6.114 RTPS 110
100 2.087518 192.168.6.132 239.255.0.1 RTPS 910
101 2.102426 192.168.6.132 239.255.0.1 RTPS 146
102 2.108882 192.168.6.132 192.168.6.125 RTPS 110
103 2.108894 192.168.6.132 192.168.70.1 RTPS 110
104 2.108899 192.168.6.132 192.168.80.1 RTPS 110
105 2.108916 192.168.6.132 192.168.6.114 RTPS 110
106 2.141479 192.168.6.132 239.255.0.1 RTPS 146
107 2.163 192.168.6.132 192.168.6.125 RTPS 110
108 2.16304 192.168.6.132 192.168.70.1 RTPS 110
109 2.163061 192.168.6.132 192.168.80.1 RTPS 110
110 2.163144 192.168.6.132 192.168.6.114 RTPS 110
111 2.175276 192.168.6.114 192.168.6.132 RTPS 106
112 2.175668 192.168.6.114 192.168.6.132 RTPS 106
113 2.176194 192.168.6.114 192.168.6.132 RTPS 106
114 2.176196 192.168.6.114 192.168.6.132 RTPS 106
115 2.176724 192.168.6.132 239.255.0.1 RTPS 890
116 2.186826 192.168.6.149 239.255.0.1 RTPS 146
117 2.18683 192.168.6.149 239.255.0.1 RTPS 146
118 2.187821 192.168.6.149 239.255.0.1 RTPS 146
119 2.187825 192.168.6.149 239.255.0.1 RTPS 146
120 2.202925 192.168.6.132 192.168.6.125 RTPS 110
121 2.202936 192.168.6.132 192.168.70.1 RTPS 110
122 2.202942 192.168.6.132 192.168.80.1 RTPS 110
123 2.202958 192.168.6.132 192.168.6.114 RTPS 110
124 2.204504 192.168.6.114 192.168.6.132 RTPS 106
125 2.217402 192.168.6.132 239.255.0.1 RTPS 918
126 2.250785 192.168.6.132 239.255.0.1 RTPS 910
127 2.253399 192.168.6.132 239.255.0.1 RTPS 146
128 2.255321 192.168.6.132 239.255.0.1 RTPS 906
129 2.277901 192.168.6.132 192.168.6.125 RTPS 110
130 2.277914 192.168.6.132 192.168.70.1 RTPS 110
131 2.27792 192.168.6.132 192.168.80.1 RTPS 110
132 2.277946 192.168.6.132 192.168.6.114 RTPS 110
133 2.27952 192.168.6.114 192.168.6.132 RTPS 106
134 2.303003 192.168.6.132 192.168.6.125 RTPS 110
135 2.303043 192.168.6.132 192.168.70.1 RTPS 110
136 2.303064 192.168.6.132 192.168.80.1 RTPS 110
137 2.303147 192.168.6.132 192.168.6.114 RTPS 110
138 2.304437 192.168.6.114 192.168.6.132 RTPS 106
139 2.314884 192.168.6.125 192.168.6.132 RTPS 106
140 2.314886 192.168.6.125 192.168.6.132 RTPS 106
141 2.314965 192.168.6.125 192.168.6.132 RTPS 106
142 2.31512 192.168.6.125 192.168.6.132 RTPS 106
143 2.315121 192.168.6.125 192.168.6.132 RTPS 106
144 2.315205 192.168.6.125 192.168.6.132 RTPS 106
145 2.315206 192.168.6.125 192.168.6.132 RTPS 106
146 2.320935 192.168.6.132 192.168.6.125 RTPS 110
147 2.32096 192.168.6.132 192.168.70.1 RTPS 110
148 2.320976 192.168.6.132 192.168.80.1 RTPS 110
149 2.32103 192.168.6.132 192.168.6.114 RTPS 110
150 2.329616 192.168.6.132 239.255.0.1 RTPS 146
151 2.330565 192.168.6.114 192.168.6.132 RTPS 106
152 2.341503 192.168.6.132 239.255.0.1 RTPS 146
153 2.343022 192.168.6.149 239.255.0.1 RTPS 146
154 2.376308 192.168.6.132 239.255.0.1 RTPS 146
155 2.395825 192.168.6.149 239.255.0.1 RTPS 146
156 2.548168 192.168.6.132 239.255.0.1 RTPS 146
157 2.570517 192.168.6.132 239.255.0.1 RTPS 146
158 2.611479 192.168.6.125 192.168.6.132 RTPS 106
159 2.613891 192.168.6.132 239.255.0.1 RTPS 146
160 2.618985 192.168.6.149 239.255.0.1 RTPS 146
161 2.656532 192.168.6.132 239.255.0.1 RTPS 922
162 2.736513 192.168.6.125 239.255.0.1 RTPS 146
163 2.923952 192.168.6.114 192.168.6.132 RTPS 110
164 2.924452 192.168.6.114 192.168.6.132 RTPS 110
165 2.954357 192.168.6.132 239.255.0.1 RTPS 922
166 2.956826 192.168.6.149 239.255.0.1 RTPS 922
167 2.982879 192.168.6.149 239.255.0.1 RTPS 146
...
我需要按秒对长度进行分组。我需要知道每秒的平均长度。
例如：
if we have:
0.1 100
0.4 200
0.5 500
1.2 100
1.5 900
1.9 800
1.99 900
....
我的输出是：
Time Length
0 266.66
1 675.00
我的目标是绘制该结果表的图表来找出哪一秒的平均带宽使用量最高。
谢谢