Can libido be quantitatively measured?

Factual Questions
1

According to this website I found, not yet, but this was a year ago:

http://www.newscientist.com/article.ns?id=dn6928

What I mean, is it possible to put everything on a scale where the persons with the most active sex drive could be a 100 and asexual persons could be a 0? Without resorting to questionnaires where I believe men would be more likely to exaggerate their sex drive and women to under-report. Is their something chemical that could be measured? I thought it would be interesting to compare qualitatively, if possible, how libido varies with age, ethnicity, various income levels, regions, and religion. I seriously doubt that this much data is available, but I can wish can’t I?

Thanks in advance.

2

In general, people with higher testosterone levels will have higher sex drives. But there are so many other factors coming into play that you’d be hard-pressed to guess a person’s sex drive given their testosterone levels.

3

Arousal is not the same as libido. Arousal can be quantified in some ways; libido relies on self-report.

4

I would say a fairly good guide for men would be number times masturbating + number times sex per day.

So teens probably 2-3 decreasing down to 0-1 in middle age