Geoffrey Aka has seen concerts during 36 years.

Year   Concerts Seen  
2017 1 concert
2016 3 concerts
2015 2 concerts
2012 3 concerts
2011 5 concerts
2010 4 concerts
2009 2 concerts
2008 2 concerts
2007 4 concerts
2006 1 concert
2005 4 concerts
2004 3 concerts
2003 5 concerts
2002 8 concerts
1998 2 concerts
1997 3 concerts
1996 1 concert
1995 3 concerts
1994 4 concerts
1993 6 concerts
1992 10 concerts
1991 3 concerts
1990 5 concerts
1989 1 concert
1988 3 concerts
1987 4 concerts
1986 4 concerts
1985 3 concerts
1984 1 concert
1983 2 concerts
1982 1 concert
1981 1 concert
1980 1 concert
1979 1 concert
1978 1 concert
1977 1 concert