mass	rate
62	1792
62.9	1666
36.1	995
54.6	1425
48.5	1396
42	1418
47.4	1362
50.6	1502
42	1256
48.7	1614
40.3	1189
33.1	913
51.9	1460
42.4	1124
34.5	1052
51.1	1347
41.2	1204
51.9	1867
46.9	1439