most of the girls ( not porn or anything) that I have been with had been with only a few. Then again there had been young girls 14-15 that had been with over 20 guys already.... that is way too much.
MY current gf has only had one,me.
You must think about a formula. And that would be, how many bad relationships can you have in 4 -5 years.... ( this is just for 20 yr old girls) thinking that they started having sex at age 15-16.. most good girls start at 17-19 yr old. So most good** girls will only have about 1+2 guys until they reach 20. Now, to the question. How many bad relationships can you have in 4-5 years if she started having sex at 15 yr old? Lets just say first boyfriend she waited a long time to have sex and kept it for a year or so.. most of the time is like this. Then at 17 she could have a bad relationship.. few months? if she is a good girl she would always wait for the right one.
To make this short, at 20 yr old more less than 3 guys is good honest girl. 4-7 guys begining to think that she is a failure to have long relationships or could care less about it. Or lets just say she is a good girl that guys took advantage of..too many bad relationships. the last category 8-15 in such a small period of time is seriously something to think about, higher AIDS rates etc. You guys know what the category is when this group of girls reach 16 or more guys at 20 yr of age. It is like a category 6 Hurricane
I have seen some girls have 20 guys in less than a year, so there are many like that..
Then again if a women is 30 yr of age she should know what she is doing.. no that many bad relationships like those of 20 or less yr old.

after 20 yr old more than 2 relationships per year should bring some concerns.
I know you probably didn't ask for all this but this is my definition of good girl to keep.
20 yr old no more than 3 guys.
22 yr old no more than 5 guys.
25 yr old no more than 8 guys.
30 yr old no more than 10 guys.
35 yr old no more than *think about your future*
Those are numbers of bad relationships..
while 3/5 of all women will have less than 3 guys in her life.