i	x	y
1	5.3	5.0
2	7.1	7.2
3	7.9	8.3
4	9.0	8.7
5	12.3	10.4
6	20.8	22.1
7	26.9	28.2
8	14.3	13.4
9	16.8	16.4
10	14.9	15.3
11	8.6	7.3
12	11.9	12.3
13	9.8	9.4