Year   Concerts Seen  
2020 1 concert
2019 19 concerts
2018 16 concerts
2017 18 concerts
2016 18 concerts
2015 12 concerts
2014 8 concerts
2013 9 concerts
2012 8 concerts
2011 11 concerts
2010 7 concerts
2009 5 concerts
2008 8 concerts
2007 13 concerts
2006 7 concerts
2005 6 concerts
2004 8 concerts
2003 3 concerts
2002 4 concerts
2001 3 concerts
2000 3 concerts
1998 3 concerts
1996 1 concert
1995 1 concert
1994 3 concerts
1992 3 concerts
1991 2 concerts
1990 8 concerts
1989 6 concerts
1988 4 concerts
1987 1 concert
1985 5 concerts
1984 16 concerts
1983 12 concerts
1982 8 concerts
1981 2 concerts