Year   Concerts Seen  
2018 2 concerts
2017 1 concert
2012 1 concert
2009 1 concert
2008 1 concert
2000 1 concert
1999 1 concert
1997 3 concerts
1996 1 concert
1995 1 concert
1993 1 concert
1992 2 concerts
1991 3 concerts
1990 2 concerts
1987 3 concerts
1986 3 concerts
1985 3 concerts
1984 1 concert
1983 2 concerts