Year   Concerts Seen  
2019 2 concerts
2018 4 concerts
2017 4 concerts
2016 6 concerts
2015 7 concerts
2014 6 concerts
2013 2 concerts
2012 4 concerts
2011 4 concerts
2010 1 concert
2009 1 concert
2008 5 concerts
2007 3 concerts
2006 3 concerts
2005 6 concerts
2002 5 concerts
2001 1 concert
2000 2 concerts
1989 2 concerts
1988 2 concerts
1987 1 concert