Year   Concerts Seen  
2021 1 concert
2019 1 concert
2018 4 concerts
2017 2 concerts
2016 4 concerts
2013 5 concerts
2011 2 concerts
2010 2 concerts
2009 2 concerts
2008 4 concerts
2003 2 concerts
2002 2 concerts
2001 1 concert
1999 1 concert
1997 1 concert
1996 1 concert
1994 1 concert
1993 1 concert
1992 5 concerts
1991 1 concert
1990 1 concert