Hen1 has seen concerts during 32 years.

Year   Concerts Seen  
2019 1 concert
2018 6 concerts
2017 2 concerts
2016 6 concerts
2015 2 concerts
2014 3 concerts
2013 5 concerts
2012 6 concerts
2011 3 concerts
2010 4 concerts
2009 5 concerts
2008 3 concerts
2007 2 concerts
2006 2 concerts
2005 1 concert
2004 2 concerts
2000 1 concert
1994 1 concert
1992 2 concerts
1988 4 concerts
1987 3 concerts
1986 1 concert
1984 1 concert
1983 1 concert
1982 2 concerts
1981 1 concert
1980 1 concert
1979 1 concert
1977 2 concerts
1976 5 concerts
1975 4 concerts
1974 5 concerts