John Roth has seen concerts during 23 years.

Year   Concerts Seen  
2019 1 concert
2012 1 concert
1998 1 concert
1994 1 concert
1992 1 concert
1991 1 concert
1990 1 concert
1987 1 concert
1986 1 concert
1985 1 concert
1984 1 concert
1983 3 concerts
1982 2 concerts
1981 3 concerts
1980 4 concerts
1979 1 concert
1978 5 concerts
1977 1 concert
1976 1 concert
1975 2 concerts
1974 1 concert
1973 3 concerts
1972 11 concerts