Now, to play with some of the data (1809 entries) from my project at http://tinyurl.com/yaap7bx

Based on Nationality/Heritage (minimum of 3 instances), here they are ordered by sluttiness (and yes, Eastern Europeans lead the way):

Ukrainian Average = 251.81%
Romanian Average = 213.35%
Czech Average = 199.23%
Slovak Average = 187.65%
French Average = 187.20%
Hungarian Average = 176.69%
Polish Average = 176.10%
American/Mexican Average = 161.12%
Thai Average = 150.79%
German Average = 150.20%
Norwegian Average = 145.55%
Brazilian Average = 144.57%
Italian Average = 138.96%
Russian Average = 138.83%
Spanish Average = 136.30%
English Average = 122.51%
Swedish Average = 118.59%
Dutch Average = 112.50%
Colombian Average = 106.23%
Mexican Average = 104.64%
Canadian Average = 100.84%
Australian Average = 99.56%
Italian/Spanish Average = 98.92%
East-Indian Average = 91.69%
Filipino Average = 81.68%
American Average = 72.44%
Swiss Average = 71.15%
Puerto Rican Average = 66.95%
Korean Average = 63.00%
American/Korean Average = 58.20%
Chinese Average = 55.83%
Japanese Average = 25.98%

Being half-Ukrainian, I'm ambivalent about this...