Year   Concerts Seen  
2019 3 concerts
2016 2 concerts
2014 1 concert
1994 3 concerts
1993 5 concerts
1992 1 concert
1991 1 concert
1990 1 concert
1989 1 concert
1988 1 concert
1986 1 concert
1985 1 concert
1983 3 concerts
1982 10 concerts
1981 20 concerts
1980 17 concerts
1979 11 concerts
1978 5 concerts
1977 4 concerts
1976 2 concerts