没去过天上人间。 在美国一年内有多个的女性也只有11%:

来源: 2010-08-25 07:41:51 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

The most comprehensive report that I know of on this topic is a US
government survey/study known as "A Statistical Portrait of Fathers and Mothers in America".

The study reports that 11% of adult women in the US -- parents as well
as non-partent -- reported having 2 or more sexual partners in the
past year, and that this percentage has not changed very much in
recent decades.