Mark Hags has seen concerts during 17 years.

Year   Concerts Seen  
2024 1 concert
2023 8 concerts
2022 1 concert
2021 1 concert
2019 1 concert
2018 2 concerts
2017 1 concert
2016 3 concerts
2015 1 concert
2012 1 concert
2004 1 concert
1999 1 concert
1996 1 concert
1994 1 concert
1993 2 concerts
1992 1 concert
1989 1 concert