Rates are influenced by population.
Factor in the numbers of vets in both states (we lose 1 vet per hour to suicide), as well as those on reservations and I'm not surprised.
America needs to understand that our troops are not 'disposable'. Each represents a family; Fathers, Mothers, Sons, Daughters, Cousins, Uncles, Aunts... Our Citizens are our most valuable treasure; we waste far too many.