363: Number of registered U.S. super PACs
$130.3 million: Total raised so far by super PACs during 2012 election cycle
$34 million: Total spent by Romney's Restore Our Future super PAC, more than Gingrich's, Santorum's, Paul's and Obama's combined
14: Number of 501(c)(4) nonprofit groups that have funded ads directly for or against political candidates
33: Percentage of all super PAC spending that came from Karl Rove’s American Crossroads during the 2010 election cycle
See more stats on super PAC spending here.