Grant Wolter has seen concerts during 17 years.

Year   Concerts Seen  
2018 4 concerts
2017 15 concerts
2016 18 concerts
2015 11 concerts
2014 13 concerts
2013 5 concerts
2012 13 concerts
2011 6 concerts
2010 7 concerts
2009 8 concerts
2008 5 concerts
2007 7 concerts
2006 5 concerts
2005 8 concerts
2004 1 concert
2003 2 concerts
2001 2 concerts