Year   Concerts Seen  
2019 1 concert
2017 2 concerts
2016 1 concert
2015 1 concert
2010 1 concert
2008 5 concerts
2007 5 concerts
2006 6 concerts
2004 3 concerts
2002 2 concerts
2000 1 concert
1999 1 concert
1998 2 concerts
1995 1 concert
1989 1 concert
1988 1 concert
1987 2 concerts
1986 4 concerts
1985 8 concerts
1983 2 concerts
1982 4 concerts
1981 22 concerts
1980 1 concert
1978 1 concert