Ryan Erickson has seen concerts during 15 years.

Year   Concerts Seen  
2022 1 concert
2019 2 concerts
2017 2 concerts
2016 1 concert
2015 3 concerts
2014 4 concerts
2013 2 concerts
2012 5 concerts
2011 8 concerts
2010 5 concerts
2009 4 concerts
2008 7 concerts
2007 8 concerts
2006 2 concerts
2005 1 concert