Joe Ludwig has seen concerts during 15 years.

Year   Concerts Seen  
2018 2 concerts
2017 7 concerts
2016 6 concerts
2015 5 concerts
2014 7 concerts
2013 5 concerts
2012 3 concerts
2011 2 concerts
2010 1 concert
2009 2 concerts
2008 1 concert
2007 1 concert
2006 3 concerts
2005 1 concert
2004 1 concert