I have a data set look like
<tbody>
Road_ID
V1
V1cum
V2
V2cum
V3
V3cum
1
2
2
0
0
1
1
1
4
6
3
3
1
2
1
3
9
4
7
4
6
1
3
12
2
9
1
7
2
0
0
4
4
2
2
2
3
3
3
7
2
4
2
4
7
1
8
3
7
2
1
8
3
11
1
8
2
0
8
2
13
4
12
2
2
10
1
14
0
12
</tbody>
each Road_ID has several rows. V1cum, V2cum...