kwallace@venus:~$ ./pass_count.py
pass = 1   depth = 0.11
pass = 2   depth = 0.114142135624
pass = 3   depth = 0.117320508076
pass = 4   depth = 0.12
pass = 5   depth = 0.122360679775
pass = 6   depth = 0.124494897428
pass = 7   depth = 0.126457513111
pass = 8   depth = 0.128284271247
pass = 9   depth = 0.13
pass = 10   depth = 0.131622776602
pass = 11   depth = 0.133166247904
pass = 12   depth = 0.134641016151
pass = 13   depth = 0.136055512755
pass = 14   depth = 0.137416573868
pass = 15   depth = 0.138729833462
pass = 16   depth = 0.14
pass = 17   depth = 0.141231056256
pass = 18   depth = 0.142426406871
pass = 19   depth = 0.143588989435
pass = 20   depth = 0.14472135955
pass = 21   depth = 0.14582575695
pass = 22   depth = 0.146904157598
pass = 23   depth = 0.147958315233
pass = 24   depth = 0.148989794856
pass = 25   depth = 0.15
pass = 26   depth = 0.150990195136
pass = 27   depth = 0.151961524227
pass = 28   depth = 0.152915026221
pass = 29   depth = 0.153851648071
pass = 30   depth = 0.154772255751
pass = 31   end depth = 0.155
kwallace@venus:~$