How long did it take you to reach 15th prestige in black ops?

For me it took about 10 days and 11 hours, I had a k.d. of 3.42, best kill streak was 28, and my win loss ration was about 1.89. Just want to know how long it took other people because I'm a little curious. Don't post any hate comments, or any comments that I have no life, cause the game has been out for about 9 months and 10 days playing time is not a lot.