[Paul_S]

That's not what the data shows. You can't compare lifetime partners of people who lived their full lives to teenagers. If you compare number of partners in the last year (prior to survey) then promiscuity had been steadily increasing since it began to be measured.

[gattilorenz]

Maybe, but if this is what the OP is claiming... he should say so, instead of snarkily replying with rhetorical questions about the existence of trends and averages.