Year   Concerts Seen  
2018 1 concert
2014 1 concert
2010 1 concert
2006 2 concerts
2005 1 concert
2004 1 concert
2003 2 concerts
2002 1 concert
2001 2 concerts
1999 3 concerts
1998 2 concerts
1993 1 concert
1978 3 concerts
1977 2 concerts