Year   Concerts Seen  
2010 2 concerts
2009 1 concert
2006 1 concert
2002 1 concert
2001 1 concert
2000 1 concert
1997 4 concerts
1996 5 concerts
1995 5 concerts
1994 3 concerts
1993 5 concerts
1992 1 concert
1990 1 concert
1989 2 concerts
1988 2 concerts
1987 2 concerts
1984 1 concert
1983 1 concert
1979 2 concerts
1978 2 concerts
1977 5 concerts
1976 3 concerts
1975 8 concerts
1974 1 concert
1973 6 concerts
1972 6 concerts
1971 8 concerts
1970 13 concerts
1969 5 concerts
1968 5 concerts
1965 1 concert