David Thomas has seen concerts during 28 years.

Year   Concerts Seen  
2023 3 concerts
2022 4 concerts
2019 1 concert
2018 1 concert
2010 2 concerts
2008 2 concerts
2007 1 concert
2006 2 concerts
2005 3 concerts
2004 2 concerts
2003 3 concerts
2002 1 concert
2000 2 concerts
1999 2 concerts
1998 3 concerts
1997 1 concert
1996 1 concert
1995 1 concert
1994 1 concert
1993 2 concerts
1992 1 concert
1991 1 concert
1988 1 concert
1981 1 concert
1975 1 concert
1974 1 concert
1972 1 concert
1971 1 concert