Year   Concerts Seen  
2023 1 concert
2018 3 concerts
2016 1 concert
2012 1 concert
2011 2 concerts
2010 1 concert
2009 2 concerts
2007 1 concert
1998 1 concert
1996 2 concerts
1995 2 concerts
1992 1 concert
1990 1 concert
1989 1 concert
1986 1 concert
1982 4 concerts
1981 5 concerts
1980 2 concerts
1979 1 concert