"WMA","year","mean","var"
1,1,10.84,34.39
2,1,9.8,8.84
3,1,11.5,48
4,1,9.17,36.6
5,1,7.57,28.95
6,1,10.22,24.42
1,2,9.42,24.27
2,2,8.75,21.36
3,2,9.89,18.1
4,2,9.36,30.4
5,2,12.93,30.92
6,2,9.73,18.11