Year   Concerts Seen  
2023 1 concert
2022 1 concert
2013 2 concerts
2011 1 concert
2010 2 concerts
2009 4 concerts
2008 1 concert
2007 3 concerts
2006 4 concerts
2005 3 concerts
2004 2 concerts
2003 4 concerts
2002 7 concerts
2001 3 concerts
2000 5 concerts
1999 3 concerts
1998 3 concerts
1997 3 concerts
1996 3 concerts
1995 3 concerts
1994 4 concerts
1993 2 concerts
1992 5 concerts
1991 1 concert
1990 1 concert
1988 2 concerts
1981 1 concert
1980 3 concerts
1979 3 concerts
1978 3 concerts
1977 5 concerts
1976 7 concerts
1975 3 concerts
1973 1 concert
1972 1 concert
1969 3 concerts
1967 1 concert