< Yearly occurrence number of flares >

Year X-class M-class C-class Yearly SSN
1996 1 4 81 8.6
1997 3 21 286 21.5
1998 14 94 1188 64.3
1999 4 170 1854 93.3
2000 17 215 2263 119.6
2001 21 310 2101 111.0
2002 12 219 2323 104.0
2003 20 160 1316 63.7
2004 12 122 912 40.4
2005 18 103 599 29.8
2006 4 14 174 15.2
2007 0 10 73 7.5
2008 0 1 8 2.9
2009 0 0 28 3.1
2010 0 23 170 16.5
2011 8 111 1200 55.7
2012 7 123 1259 57.7
2013 12 99 1356 64.9
2014 16 205 1797 79.0