Year   Concerts Seen  
2020 2 concerts
2019 7 concerts
2018 3 concerts
2017 4 concerts
2016 4 concerts
2015 2 concerts
2014 4 concerts
2013 2 concerts
2012 2 concerts
2011 5 concerts
2010 5 concerts
2009 3 concerts
2008 4 concerts
2006 1 concert
2005 1 concert
2002 2 concerts
2001 1 concert
2000 3 concerts
1999 2 concerts
1998 3 concerts
1994 1 concert
1986 1 concert
1972 2 concerts