For the Worldwide Religious Self-perception pie chart on my Twitter site and ratio calculations, the #s of ‘convinced’ atheists (2012), non-religious, & worldwide evangelicals (in 2010) were calculated from data from a 2012 WIN Gallup International poll http://www.winmr.com/web/files/news/14/file/14.pdf, and 7 billion population reached in 2012 http://blogs.census.gov/2011/10/31/the-world-population-at-7-billion/ , and a 2010 Pew Global Christianity Report ( http://www.pewforum.org/Christian/Global-Christianity-worlds-christian-population.aspx). I separated the 59% of those in the world who considered themselves religions into evangelicals, other religious Christian and other religious. I did this using the worldwide estimate for Christians at 31.7% from the Pew report and backed out the estimated 16% of all "Christians” estimated in the WIN Gallup International poll to be "not religious” after subtracting a worldwide estimate of 4.1% evangelicals, worldwide (from Pew report). I did not subtract that 16% from the number of evangelicals. The number of U.S. evangelicals was based on a U.S. population of 314,395,013 in 2012 (http://www.commerce.gov/blog/2012/09/17/us-population-reaches-314395013-constitution-day-2012 )and an estimate of 43% of the U.S. population from a 2005 Gallup poll (http://www.gallup.com/poll/20242/another-look-evangelicals-america-today.aspx).
Let @EvoCreatn know if you do the math yourself and see that I miscalculated anything.
Note that the number of U.S. evangelicals, at 43%, is close to the 46% of those adopting a YEC position in the U.S. remaining fairly constant since 1982.
See Pie Chart = https://twitter.com/EvoCreatn/status/317677677412769795/photo/1