Lthieson has seen concerts during 30 years.

Year   Concerts Seen  
2023 10 concerts
2022 10 concerts
2019 10 concerts
2018 11 concerts
2017 8 concerts
2016 2 concerts
2015 3 concerts
2014 5 concerts
2013 1 concert
2012 3 concerts
2011 1 concert
2010 3 concerts
2009 1 concert
2008 2 concerts
2007 5 concerts
2006 2 concerts
2005 2 concerts
2004 2 concerts
2003 1 concert
2001 1 concert
1996 1 concert
1992 5 concerts
1990 1 concert
1989 1 concert
1987 2 concerts
1981 1 concert
1980 1 concert
1979 5 concerts
1978 2 concerts
1976 1 concert