John J66 has seen concerts during 35 years.

Year   Concerts Seen  
2023 1 concert
2019 1 concert
2018 2 concerts
2017 5 concerts
2016 2 concerts
2015 2 concerts
2014 2 concerts
2013 2 concerts
2012 1 concert
2010 1 concert
2006 3 concerts
2005 1 concert
2004 2 concerts
2003 1 concert
2001 1 concert
2000 3 concerts
1999 9 concerts
1998 3 concerts
1997 4 concerts
1996 3 concerts
1995 4 concerts
1994 2 concerts
1993 3 concerts
1992 2 concerts
1991 3 concerts
1990 3 concerts
1989 1 concert
1988 4 concerts
1987 6 concerts
1986 4 concerts
1985 5 concerts
1984 7 concerts
1983 5 concerts
1982 3 concerts
1981 3 concerts