P    #regions in PPM
# 2011-06-16 10:51:23 -0500  mfjofre@kerry
# low field   high field   mi   maxi
  3.0499125404507077  2.9415400136326624  0.428  1.137  # for region 1
  2.344385274023024  2.2448594840880842  0.308  1.428  # for region 2
  1.9595522196079238  1.8445446401275492  0.034  0.906  # for region 3