Year   Concerts Seen  
2019 3 concerts
2007 6 concerts
2006 3 concerts
2005 4 concerts
2004 7 concerts
2002 1 concert
2000 1 concert
1999 1 concert
1996 2 concerts
1995 1 concert
1994 2 concerts
1993 3 concerts
1992 1 concert
1991 1 concert
1990 1 concert
1989 2 concerts
1988 1 concert
1987 3 concerts