How many tornadoes were reported in the 2011 outbreak?

There were many tornado outbreaks in 2011. Here are the figures for the most notable outbreaks:

April 14-16: 323 reported, 178 confirmed

April 25-28: 492 reported, 350 confirmed

May 21-26: 319 reported, 239 confirmed

The number of confirmed tornadoes is lower because not all reported tornadoes are confirmed and some tornadoes were reported more than once.