www.alternet.org/belief/religion-america-great-decline-christian-right-has-major-role-hastening-it
"Of those aged 18 to 35, three in 10 say they are not affiliated with any religion, while only half are “absolutely certain” a god exists. These are at or near the highest levels of religious disaffiliation recorded for any generation in the 25 years the Pew Research Center has been polling on these topics."