Christopher Gross has seen concerts during 24 years.

Year   Concerts Seen  
2023 2 concerts
2021 1 concert
2019 1 concert
2018 4 concerts
2016 2 concerts
2015 1 concert
2013 3 concerts
2012 1 concert
2011 1 concert
2010 2 concerts
2008 2 concerts
2006 2 concerts
2003 5 concerts
2001 1 concert
2000 1 concert
1998 2 concerts
1997 1 concert
1996 1 concert
1994 1 concert
1993 1 concert
1992 3 concerts
1991 2 concerts
1989 2 concerts
1986 1 concert