Dennis Dijkstra has seen concerts during 13 years.

Year   Concerts Seen  
2020 3 concerts
2019 5 concerts
2018 8 concerts
2017 7 concerts
2016 2 concerts
2015 2 concerts
2014 1 concert
2013 2 concerts
2011 1 concert
2010 1 concert
2008 1 concert
2007 1 concert
2004 1 concert