25defense has seen concerts during 24 years.

Year   Concerts Seen  
2023 16 concerts
2022 23 concerts
2021 22 concerts
2020 4 concerts
2019 67 concerts
2018 70 concerts
2017 52 concerts
2016 41 concerts
2015 49 concerts
2014 42 concerts
2013 21 concerts
2012 8 concerts
2011 4 concerts
2010 1 concert
2008 1 concert
2001 1 concert
1999 1 concert
1998 1 concert
1997 2 concerts
1996 27 concerts
1995 35 concerts
1994 62 concerts
1993 20 concerts
1984 1 concert