P    #regions in PPM
# 2011-07-29 10:02:29 -0500  mfjofre@kerry
# low field   high field   mi   maxi
  4.5639614002429445  4.496639069820221  0.013  0.052  # for region 1
  4.09763111146115  3.985974563442974  0.008  0.084  # for region 2
