Year   Concerts Seen  
2019 3 concerts
2018 4 concerts
2017 9 concerts
2016 3 concerts
2015 3 concerts
2014 2 concerts
2012 1 concert
2011 2 concerts
2010 6 concerts
2009 8 concerts
2008 4 concerts
2007 2 concerts
2006 5 concerts
2005 1 concert
2003 4 concerts
2002 7 concerts
1998 1 concert
1995 3 concerts
1993 2 concerts
1991 2 concerts
1990 2 concerts
1989 2 concerts
1987 2 concerts