Batch	WeightDev
1	0.09
1	-0.04
1	-0.08
1	-0.01
1	0
2	0.01
2	0.14
2	-0.04
2	0.02
2	-0.01
3	-0.22
3	-0.1
3	-0.13
3	-0.1
3	-0.11
4	-0.04
4	-0.02
4	-0.11
4	0.06
4	-0.1