rownames,X1,X2,X3,Y
1,8.2,4,23.005,7.6
2,7.6,5,23.873,7.7
3,4.6,0,26.417,4.3
4,4.3,1,24.868,5.9
5,5.9,2,29.895,5
6,5,3,24.2,6.5
7,6.5,4,23.215,8.3
8,8.3,5,21.862,8.2
9,10.1,0,22.274,13.2
10,13.2,1,23.83,12.6
11,12.6,2,25.144,10.4
12,10.4,3,22.43,10.8
13,10.8,4,21.785,13.1
14,13.1,5,22.38,12.3
15,13.3,0,23.927,10.4
16,10.4,1,33.443,10.5
17,10.5,2,24.859,7.7
18,7.7,3,22.686,9.5
19,10,0,21.789,12
20,12,1,22.041,12.6
21,12.1,4,21.033,13.6
22,13.6,5,21.005,14.1
23,15,0,25.865,13.5
24,13.5,1,26.29,11.5
25,11.5,2,22.932,12
26,12,3,21.313,13
27,13,4,20.769,14.1
28,14.1,5,21.393,15.1