P    #regions in PPM
# 2015-09-19 16:33:12 +0800  nmr@EP-10013327
# low field   high field   mi   maxi
  9.233517822140016  3.7323223380680908  0.535  17.688  # for region 1
  3.166282931346864  2.7948195706860584  0.109  0.765  # for region 2
  2.5471773302455216  2.104959043744563  0.153  1.333  # for region 3
  1.4327872482631059  0.5306619438011504  3.563  7.519  # for region 4
