Mark Seaton has seen concerts during 14 years.

Year   Concerts Seen  
2022 4 concerts
2019 1 concert
2018 1 concert
2017 1 concert
2016 1 concert
2015 1 concert
2011 1 concert
1990 1 concert
1989 5 concerts
1988 2 concerts
1987 1 concert
1986 1 concert
1985 2 concerts
1982 1 concert