Wait... it's happened 4 times but that's only 5%? That means there have been 80 elections yet only 44 presidents? And that would mean the first election was in 1692...
And while it happened 4 times, it has only occurred once in past 30 elections...
If you want to be really precise about it, it's 3 times in 57 elections, which comes out to 5.26%, which can be abbreviated to "5%" to save me around 2 keystrokes.
The fourth one I mentioned when I said "3 or 4" was the election of 1824. While the candidate who won technically didn't receive the most popular votes, the guy who did (Andrew Jackson) only won around 40%. In addition to this there were four candidates running who were all from the same party, so it honestly didn't even matter that much.
Edited 7/15/2016 03:28:15