P    #regions in PPM
# 2023-12-12 10:37:56 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6693  4.6431  0.000  10000.000  # for region 1
  4.1257  4.1122  0.000  10000.000  # for region 2
  0.1792  -0.1195  0.000  10000.000  # for region 3
