method day y
1 1 142.3
1 1 144
1 2 134.9
1 2 146.3
1 3 148.6
1 3 156.5
1 4 152
1 4 151.4
2 1 142.9
2 1 147.4
2 2 125.9
2 2 127.6
2 3 135.5
2 3 138.9
2 4 142.9
2 4 142.3