Zach has seen concerts during 25 years.

Year   Concerts Seen  
2024 1 concert
2023 2 concerts
2022 6 concerts
2019 3 concerts
2018 3 concerts
2017 4 concerts
2016 5 concerts
2015 2 concerts
2014 4 concerts
2013 2 concerts
2012 2 concerts
2011 1 concert
2010 2 concerts
2008 3 concerts
2007 4 concerts
2006 1 concert
2005 2 concerts
2004 2 concerts
2003 1 concert
2001 3 concerts
2000 3 concerts
1999 1 concert
1998 2 concerts
1997 3 concerts
1988 1 concert