Mark Decker has seen concerts during 44 years.

Year   Concerts Seen  
2025 4 concerts
2024 16 concerts
2023 9 concerts
2022 10 concerts
2021 10 concerts
2020 1 concert
2019 12 concerts
2018 17 concerts
2017 9 concerts
2016 16 concerts
2015 6 concerts
2014 7 concerts
2013 6 concerts
2012 11 concerts
2011 7 concerts
2010 6 concerts
2009 10 concerts
2008 9 concerts
2007 10 concerts
2006 4 concerts
2005 6 concerts
2004 4 concerts
2003 5 concerts
2002 6 concerts
2001 4 concerts
2000 4 concerts
1999 3 concerts
1997 3 concerts
1996 2 concerts
1995 2 concerts
1994 2 concerts
1993 1 concert
1992 5 concerts
1991 3 concerts
1990 4 concerts
1989 6 concerts
1988 6 concerts
1987 3 concerts
1986 5 concerts
1985 5 concerts
1984 7 concerts
1983 4 concerts
1982 5 concerts
1978 1 concert