Erik Houser has seen concerts during 21 years.

Year   Concerts Seen  
2023 14 concerts
2022 23 concerts
2021 2 concerts
2020 5 concerts
2019 26 concerts
2018 27 concerts
2017 23 concerts
2016 17 concerts
2015 9 concerts
2014 11 concerts
2013 1 concert
2012 5 concerts
2011 9 concerts
2010 3 concerts
2009 6 concerts
2008 3 concerts
2007 9 concerts
2006 4 concerts
2005 5 concerts
2004 2 concerts
2001 1 concert