rescaled with global max as max
regional values updated

regional values for hd_sb updated according to mapping by Mazor et al,
2014 of regional trawl catch
Mazor T, Possingham HP, Edelist D, Brokovich E, Kark S (2014) The
Crowded Sea: Incorporating Multiple Marine Activities in Conservation
Plans Can Significantly Alter Spatial Priorities. PLoS ONE 9(8):
e104489. doi:10.1371/journal.pone.0104489
regions numbering
error in calculation corrected