John Clinton has seen concerts during 28 years.

Year   Concerts Seen  
2023 1 concert
2019 2 concerts
2018 1 concert
2017 1 concert
2016 1 concert
2014 1 concert
2012 1 concert
2011 1 concert
2010 1 concert
2009 1 concert
2000 1 concert
1996 1 concert
1995 2 concerts
1994 3 concerts
1993 1 concert
1991 1 concert
1985 1 concert
1984 4 concerts
1983 1 concert
1982 2 concerts
1981 3 concerts
1980 8 concerts
1979 7 concerts
1978 2 concerts
1977 5 concerts
1976 3 concerts
1975 3 concerts
1973 2 concerts