P    #regions in PPM
# 2018-04-30 14:49:10 +0200  Admin@DELL-WKUBA
# low field   high field   mi   maxi
  8.420307086165199  8.15649951121501  2.825  4.109  # for region 1
  7.628884361314633  7.187410460377583  3.152  4.786  # for region 2
