"Florida's election saw 6.1 million votes cast, and county figures suggest that more than 176,000 ballots, or 2.9 percent, never made it into the certified totals.
That percentage is not unusual and likely would have attracted little attention but for the closeness of the outcome. Nationwide last year, about 2 percent of ballots were disqualified. Some states were far higher: Illinois with 3.9 percent, Georgia 3.5 percent, South Carolina 3.4 percent of votes untallied for a variety of reasons."