I realize that this data has been posted here a few times in the past, but I made up some graphs to really drive the points home. The Kinsey Institute has some valuable data regarding fequency of sex, which can be extrapolated to consider the chance and ability to obtain sex. Here's what we found..

Single People, No sex in the past year

Implied SMV chart

Other notable graphs:

Married, No sex in past year

Parntered, No sex in past year

http://www.kinseyinstitute.org/resources/FAQ.html#frequency