P    #regions in PPM
# 2024-03-21 16:50:17 -0400  isaacs@CZC8497J60
# low field   high field   mi   maxi
  7.194002154225392  6.5265174182663355  0.099  0.223  # for region 1
  6.096360588426053  5.147048963950951  0.028  0.174  # for region 2
  4.5388962045215875  3.7972464979004132  0.026  0.204  # for region 3
  3.3225906856628615  2.7737699027631924  0.308  0.475  # for region 4
  2.3139470846580643  1.4388004308450784  0.086  0.318  # for region 5
