21 0
20.5 0.881998
20 1.73312
19.5 2.68421
19 3.55712
18.5 4.513
18 5.96551
17.5 7.57114
17 9.14857
16.5 10.6423
16 12.4401
15.5 15.0801
15 17.7201
14.5 20.3601
14 23.0001
13.5 25.6401
13 28.2801