Year   Concerts Seen  
2016 1 concert
2006 1 concert
2005 1 concert
2004 1 concert
1999 1 concert
1998 1 concert
1993 1 concert
1992 1 concert
1990 2 concerts
1983 1 concert
1982 3 concerts
1977 2 concerts
1976 4 concerts
1975 5 concerts
1974 6 concerts