#polydispersity efficiency at 5e3       2e3     1e3
0.0	1.0	1.0     1.0
1.0	1.65	1.39    1.28
2.5	18.0	11	7.6
5.0	99.0	51	31
8.0	182	86	49
10.0	203	94	53
12.0	200	94	56
15.0	195	89	53