[wideawake]

Today, there are about 13 million Jews worldwide, while in 2020 the figure will increase to an estimated 13.6 million Jews.

I wonder if that counts conversions in general, Orthodox conversions, or just organic growth.

If simply organic growth, that's a more than 4.5% increase in 15 years.

In other words, the percentage of young frum Jews will be significantly increasing.

[sofaman]

increasing through organic growth and the Ba'al Teshuva movement is also growing exponentially. So the number of frum Jews is increasing due to both of those factors. Frum Jews are no longer necessarily FFBs.