or culture?  A survey of 280 Japanese women seemed to find geographic clustering.  Such as women in one area who seem to be the loudest moaners.  (I have no personal experience with Japanese women, but in videos I have seen, Japanese women seem to have a girlish squeek during orgasm, rather than mature moans and loud utterings I have observed in this country.) And, in another area seemed to be women who were the most eager to have sex.
  You ladies and gents who travel:  do you have any observations?  As I am thinking about the question, I am taken back to the Beach Boys song, California Girls, with descriptions of Northern, Southern, etc. (I imagine the fact that so many of us no longer live where we grew up reduces the liklihood of any meaningful amalysis.)