Check out the amount of fights all the way up until 2005. 3 a year is a LOT when you have training in-between.
2 Fights in 2011
1 Fight in 2010
2 Fights in 2009
1 Fight in 2008
2 Fights in 2007
2 Fights in 2006
3 Fights in 2005
5 Fights in 2004
5 Fights in 2003
3 Fights in 2002
5 Fights in 2001
5 Fights in 2000