Year   Concerts Seen  
2020 1 concert
2019 3 concerts
2018 7 concerts
2017 1 concert
2015 2 concerts
2014 1 concert
2013 3 concerts
2012 2 concerts
2011 4 concerts
2009 1 concert
2008 2 concerts
2006 2 concerts
2005 1 concert
2004 1 concert
2000 1 concert
1998 1 concert
1996 1 concert
1991 2 concerts
1990 3 concerts
1989 2 concerts
1988 5 concerts
1987 3 concerts
1985 1 concert