Peter O'sullivan has seen concerts during 18 years.

Year   Concerts Seen  
2022 2 concerts
2016 2 concerts
2015 1 concert
2013 1 concert
2012 1 concert
2011 2 concerts
2010 6 concerts
2009 1 concert
2008 2 concerts
2007 1 concert
2005 2 concerts
2004 2 concerts
2003 4 concerts
2002 2 concerts
2001 1 concert
2000 1 concert
1997 1 concert
1996 2 concerts