Year   Concerts Seen  
2024 1 concert
2020 1 concert
2019 1 concert
2014 2 concerts
1996 1 concert
1993 1 concert
1988 1 concert
1980 2 concerts
1979 1 concert
1978 3 concerts
1977 1 concert
1976 3 concerts
1975 1 concert
1974 5 concerts
1973 6 concerts
1972 2 concerts
1971 1 concert