Sex aversion continues to rise:

“The association released its newest survey for 2014 a few months ago. In that survey, 65.8 percent of women 16-19 were not interested in sex or felt an aversion to it, and 39.2 percent of women 20-24 felt the same way.”

http://www.politifact.com/punditfact/statements/2015/jun/23/...

these numbers are skyrocketing; within 10 years (should the trend reach its logical conclusion, which i doubt that it will), there will be zero japanese interested in sex.

Fertility rate is up slightly for what it's worth:

https://www.google.com/publicdata/explore?ds=d5bncppjof8f9_&...