Year   Concerts Seen  
2021 1 concert
2020 5 concerts
2019 9 concerts
2018 9 concerts
2017 6 concerts
2016 8 concerts
2015 6 concerts
2014 10 concerts
2013 9 concerts
2012 5 concerts
2011 7 concerts
2010 11 concerts
2009 5 concerts
2008 11 concerts
2007 8 concerts
2006 14 concerts
2005 6 concerts
2004 7 concerts
2003 4 concerts
2001 1 concert
1998 1 concert
1996 1 concert
1995 2 concerts
1994 2 concerts
1993 1 concert
1992 1 concert
1991 5 concerts
1990 6 concerts
1989 4 concerts
1988 3 concerts
1987 1 concert