Year   Concerts Seen  
2025 1 concert
2024 1 concert
2019 2 concerts
2018 1 concert
2017 1 concert
2015 4 concerts
2011 1 concert
2010 3 concerts
2007 2 concerts
2006 1 concert
2002 1 concert
2000 1 concert
1999 1 concert
1998 2 concerts
1996 1 concert
1995 1 concert
1994 2 concerts
1989 3 concerts
1988 1 concert
1987 1 concert
1986 2 concerts
1976 3 concerts
1975 3 concerts
1974 5 concerts
1973 4 concerts
1972 1 concert
1971 10 concerts
1970 3 concerts
1969 1 concert