Year   Concerts Seen  
2022 5 concerts
2021 4 concerts
2020 2 concerts
2019 4 concerts
2018 3 concerts
2011 1 concert
2009 3 concerts
2008 1 concert
2006 1 concert
2001 1 concert
2000 1 concert
1994 1 concert
1992 1 concert
1990 1 concert
1988 1 concert
1986 1 concert
1985 1 concert
1982 2 concerts
1981 1 concert
1980 1 concert
1979 1 concert
1978 1 concert
1976 1 concert
1975 4 concerts
1974 4 concerts
1973 3 concerts
1972 5 concerts
1971 3 concerts
1970 1 concert