Derrick Schafer has seen concerts during 25 years.

Year   Concerts Seen  
2023 9 concerts
2022 2 concerts
2019 5 concerts
2018 5 concerts
2017 5 concerts
2016 4 concerts
2015 4 concerts
2014 1 concert
2013 3 concerts
2012 5 concerts
2011 2 concerts
2010 1 concert
2008 2 concerts
2006 2 concerts
2005 3 concerts
2004 3 concerts
2003 3 concerts
2002 3 concerts
2001 3 concerts
2000 1 concert
1999 4 concerts
1998 2 concerts
1997 10 concerts
1996 1 concert
1992 1 concert