Belief In Evolution In The United States

These results are from a YouGov Poll conducted on July 8th and 9th of this year. While enlightening, I found them to be a bit disappointing -- since only a plurality (46%) of Americans believe in evolution (either with or without help from a god), while 37% believe in creationism and 17% don't know what they believe.
It is interesting though to see the rise in the number of people in the last decade who believe in evolution without any help from a god. It has jumped from 13% in 2004 to 21% in 2013. This closely mirrors the rise in the number of Americans who say they are not religious -- which a Pew Research Center survey puts at about 20% (or 1 out of every 5 Americans).
NOTE -- The figures in the middle chart for some religions (Mormon, Orthodox, Jewish, Buddhist, Muslim, and Hindu) are compiled from an extremely small samples -- and therefore could have a large margin of error.