Kind in mind when adjusting these polls: from 1996-2012, Dem turnout was 4-6% more than Republican turnout every time, except 2004, where it was even.
Also, the Independent vote has been pushing upward.
Also curious about these exit polls: in 2000, 2004, 2008, the percent of the electorate who in the exit polls stated that they were gay, lesbian or bisexual was 4-5%, and of those 20-25% voted R.
In 1996, they only have the breakdown of the vote (R/D/I) but not % of the electorate.
IN 2012, they didn't ask the question (or they just didn't report it).