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