um, the thread title asks about a national average and then the question itself asks about the user personally. I don't understand what the poll is actually asking.
I have a feeling the distribution would be shaped in the form of one half of a normal distribution, like this:
http://www.nerdsonsports.com/wp-content/uploads/2007/08/bell-curve.gif
(Ignore the labels, it's the shape I'm looking at.)
Probably the mean is somewhere around 2-3. A huge percentage of men only sleep with one woman their entire lives, and they wind up marrying her. Relatively few sleep with more than 4-5, and very very few sleep with more than 10.
From
http://www.kinseyinstitute.org/resources/FAQ.html#number
Males 30-44 report an average of 6-8 female sexual partners in their lifetime (Mosher, Chandra, & Jones, 2005).
Females 30-44 report an average of 4 male sexual partners in their lifetime (Mosher, Chandra, & Jones, 2005).
3% of men have had zero sexual partners since the age of 18, 20% have had 1 partner, 21% have had 2-4 partners, 23% have had 5-10 partners, 16% have had 11-20 partners, and 17% have had 21 or more partners (Laumann, Gagnon, Michael, Michaels, 1994).
3% of women have had zero sexual partners since the age of 18, 31% have had 1 partner, 36% have had 2-4 partners, 20% have had 5-10 partners, 6% have had 11-20 partners, and 3% have had 21 or more partners (Laumann, Gagnon, Michael, Michaels, 1994).
20% of American men and 31% of American women have had one sex partner in their lifetime (Laumann, Gagnon, Michael, Michaels, 1994).
56% of American men and 30% of American women have had 5 or more sex partners in their lifetime (Laumann, Gagnon, Michael, Michaels, 1994).
Of course every time you survey people about sex, you get a ton of ridiculous answers. Here's another survey:
http://www.sheknows.com/love-and-sex/articles/803195/sexual-partners-whats-your-sex-number
"Psychologist and Professor Norman R Brown and his colleagues at the University of Michigan report that -- on average -- by the time a man is in his 40s, he has had 31.9 partners, while women have had 8.6 partners."
Here's another by the US government which has totally different numbers:
http://www.msnbc.msn.com/id/1937421.../t/new-survey-tells-how-much-sex-were-having/
So the real answer is:
whenever you ask people about how much money or sex they have, the answers will be completely dishonest.