Year   Concerts Seen  
2023 1 concert
2022 1 concert
2019 1 concert
2017 1 concert
2010 4 concerts
2008 3 concerts
2007 12 concerts
2006 5 concerts
2005 14 concerts
2004 13 concerts
2003 3 concerts
2002 1 concert
2001 1 concert
2000 7 concerts
1998 1 concert
1997 3 concerts
1996 7 concerts
1994 1 concert
1993 3 concerts
1990 5 concerts
1989 2 concerts
1988 3 concerts
1987 4 concerts
1983 1 concert
1982 1 concert
1978 2 concerts
1977 5 concerts
1976 4 concerts
1975 1 concert