Year   Concerts Seen  
2009 2 concerts
2008 1 concert
2006 1 concert
2004 1 concert
2003 3 concerts
2001 1 concert
1998 2 concerts
1995 1 concert
1993 1 concert
1990 1 concert
1989 1 concert
1986 1 concert
1985 2 concerts
1984 1 concert
1983 4 concerts
1982 2 concerts
1981 3 concerts
1980 4 concerts
1978 1 concert