x	y
8	22.8
15	27.2
16.5	23.7
20	17.1
20	21.5
27.5	18.6
30	16.1
30	23.4
35	13.4
38	19.5
40	12.4
45	13.2
50	11.4
50	10.3
55	14.1
55	9.7
59	12
65	6.8