Eric Heckelman has seen concerts during 31 years.

Year   Concerts Seen  
2019 1 concert
2018 2 concerts
2017 2 concerts
2016 2 concerts
2015 3 concerts
2012 2 concerts
2010 2 concerts
2009 2 concerts
2007 3 concerts
2006 4 concerts
2005 1 concert
2004 2 concerts
2003 2 concerts
2001 1 concert
2000 4 concerts
1999 2 concerts
1998 3 concerts
1997 5 concerts
1996 3 concerts
1995 4 concerts
1994 6 concerts
1993 1 concert
1991 2 concerts
1988 6 concerts
1987 2 concerts
1986 2 concerts
1985 2 concerts
1984 1 concert
1983 1 concert
1979 1 concert
1978 1 concert