Year  
Concerts Seen  
2020 1 concert
2017 1 concert
1998 1 concert
1996 1 concert
1995 1 concert
1993 1 concert
1991 1 concert
1990 2 concerts
1989 4 concerts
1988 2 concerts
1987 2 concerts
1986 1 concert
1985 1 concert
1984 4 concerts
1983 3 concerts
1982 8 concerts
1981 3 concerts
1980 10 concerts
1979 15 concerts
1978 16 concerts
1977 8 concerts
1976 8 concerts
1975 4 concerts