P    #regions in PPM
# 2011-07-29 10:12:17 -0500  mfjofre@kerry
# low field   high field   mi   maxi
  4.5654902040677054  4.497403490020747  0.036  0.178  # for region 1
  4.106364929615915  3.9821526810167334  0.027  0.345  # for region 2
