Marco De Graaf has seen concerts during 19 years.

Year   Concerts Seen  
2025 1 concert
2024 4 concerts
2023 3 concerts
2022 3 concerts
2021 1 concert
2017 3 concerts
2015 1 concert
2014 1 concert
2013 1 concert
2012 1 concert
2010 1 concert
2008 1 concert
2001 1 concert
2000 2 concerts
1998 1 concert
1989 1 concert
1987 3 concerts
1986 2 concerts
1985 1 concert