Mark Westerlund has seen concerts during 20 years.

Year   Concerts Seen  
2023 9 concerts
2022 5 concerts
2012 1 concert
2011 2 concerts
2004 4 concerts
2003 2 concerts
2002 1 concert
1998 1 concert
1996 1 concert
1995 1 concert
1994 1 concert
1993 1 concert
1992 2 concerts
1991 2 concerts
1990 2 concerts
1989 1 concert
1988 2 concerts
1987 1 concert
1986 2 concerts
1984 1 concert