Mark H has seen concerts during 12 years.

Year   Concerts Seen  
2023 1 concert
2022 2 concerts
2021 2 concerts
2019 1 concert
2018 1 concert
2017 1 concert
2016 1 concert
2013 1 concert
2004 1 concert
2002 1 concert
1998 1 concert
1994 1 concert