You don’t have any data, you have only been flaunting a percentage figure. And your experience is BS.
Fact is 8 million evangelicals stayed home. Imagine another 8 million staying home and your percentage might as well be 97% to 3% for Romney. Wont make a difference.
We have lots of data, religiously you fall into the hate Christian category, which usually means atheist, or on the fringe of that category.
Can you name the group that was easily the most massively supportive, enthusiastic voters, by the largest percentage, for the Mormon candidate for president?