Year   Concerts Seen  
2019 1 concert
2017 1 concert
2013 1 concert
2008 1 concert
2004 2 concerts
2001 1 concert
2000 2 concerts
1997 2 concerts
1996 2 concerts
1995 2 concerts
1994 1 concert
1993 2 concerts
1992 3 concerts
1991 1 concert
1990 1 concert
1988 2 concerts