Bill51 has seen concerts during 33 years.

Year   Concerts Seen  
2020 1 concert
2019 6 concerts
2017 2 concerts
2016 6 concerts
2015 4 concerts
2014 5 concerts
2013 4 concerts
2012 4 concerts
2011 5 concerts
2010 4 concerts
2009 3 concerts
2008 1 concert
2007 1 concert
2005 1 concert
2004 2 concerts
2003 5 concerts
2002 4 concerts
2001 2 concerts
2000 4 concerts
1999 2 concerts
1993 1 concert
1989 1 concert
1986 1 concert
1982 1 concert
1980 1 concert
1979 1 concert
1978 2 concerts
1977 1 concert
1976 2 concerts
1975 3 concerts
1974 1 concert
1972 1 concert
1968 1 concert