P    #regions in PPM
# 2024-11-12 13:31:34 -0500  Isaacs@CZC1249Y88
# low field   high field   mi   maxi
  7.297724751403871  6.459110904665529  0.113  0.312  # for region 1
  6.084411100803717  5.1208973194447704  0.025  0.192  # for region 2
  5.1208973194447704  5.12090731944477  0.025  0.500  # for region 3
  5.1208973194447704  4.60346473315941  3.306  16.265  # for region 4
  4.603454733159411  3.8183694298298985  0.020  0.500  # for region 5
  3.8183694298298985  3.4615124737710294  0.020  0.223  # for region 6
  2.3017273665797053  0.9991994769648332  0.125  0.375  # for region 7
