Favorite time for divorce

Can someone quote the statistics: what is the American wife's favorite time to divorce her soldier husband? Is it during the first or second tour of duty? Third can't be high on the list as not many marriages ever get there. Here we're clearly dealing with an attempt at some sort of a record. Four tours and the divorce still not in sight. Very impressive but also very alarming. The lawyers must have been very angry at them - the money just passed them by. Thus democracy and freedom were dealt another blow. Not cool. What kind of example is this? It's like descent into slavery and socialism. Scary stuff.