Year   Concerts Seen  
2021 2 concerts
2015 1 concert
2009 1 concert
2007 1 concert
2001 1 concert
2000 1 concert
1999 1 concert
1998 2 concerts
1996 2 concerts
1994 1 concert
1993 2 concerts
1992 2 concerts
1990 4 concerts
1989 2 concerts
1988 2 concerts
1987 2 concerts
1986 2 concerts
1985 2 concerts
1984 1 concert
1983 3 concerts
1982 2 concerts