Year   Concerts Seen  
2019 1 concert
2018 3 concerts
2017 5 concerts
2016 2 concerts
2015 2 concerts
2014 3 concerts
2013 5 concerts
2010 1 concert
2009 1 concert
2007 5 concerts
2006 1 concert
2005 2 concerts
2004 2 concerts
2003 2 concerts
2001 1 concert
1999 1 concert
1989 1 concert
1988 3 concerts
1987 1 concert
1986 4 concerts
1985 2 concerts
1984 2 concerts
1983 1 concert
1982 2 concerts
1980 4 concerts
1979 1 concert
1978 4 concerts
1977 3 concerts
1976 2 concerts
1975 2 concerts