A look at sexual practices in the USA.
8/8/1987
12/2/1977
11/17/1966
1/1/2007
5/1/1977
1/1/1970
8/24/1985
1/1/1963
4/22/1964
11/10/1978
5/23/1997
10/10/2013
11/5/1971
1/24/1975
2/26/1970
4/12/2012
4/13/1979
6/30/1967
12/9/1964
12/1/1963
6/16/1983