Ruud Lemmen has seen concerts during 16 years.

Year   Concerts Seen  
2023 15 concerts
2022 20 concerts
2017 1 concert
2011 11 concerts
2010 48 concerts
2009 17 concerts
2008 21 concerts
2007 13 concerts
2006 11 concerts
2005 14 concerts
2004 3 concerts
2003 2 concerts
2002 2 concerts
2001 2 concerts
2000 4 concerts
1999 1 concert