Year   Concerts Seen  
2016 2 concerts
2015 1 concert
2012 1 concert
2010 1 concert
1996 1 concert
1989 1 concert
1987 1 concert
1986 1 concert
1984 1 concert
1983 2 concerts
1982 1 concert
1981 1 concert
1980 1 concert
1979 1 concert
1978 2 concerts
1977 2 concerts
1976 1 concert