Year   Concerts Seen  
2021 2 concerts
2020 1 concert
2019 1 concert
2018 3 concerts
2017 4 concerts
2016 1 concert
2015 1 concert
2014 4 concerts
2013 2 concerts
2009 1 concert
2006 1 concert
2004 2 concerts
2003 1 concert
1986 1 concert
1984 1 concert
1981 3 concerts
1980 8 concerts
1979 4 concerts
1978 9 concerts
1977 5 concerts