Peter Killjoy has seen concerts during 13 years.

Year   Concerts Seen  
2017 1 concert
2016 2 concerts
2015 1 concert
2014 1 concert
2012 6 concerts
2007 2 concerts
2002 2 concerts
1999 1 concert
1992 1 concert
1988 1 concert
1985 2 concerts
1984 1 concert
1978 1 concert