i	y
1	14.8
1	11.4
1	13.2
1	16.0
1	16.6
1	13.3
1	13.8
1	14.5
1	14.1
1	12.7
2	11.1
2	11.7
2	10.5
2	11.9
2	10.5
2	8.4
2	10.2
2	11.0
2	11.6
2	7.8