David Nykanen has seen concerts during 21 years.

Year   Concerts Seen  
2025 3 concerts
2024 24 concerts
2023 3 concerts
2022 3 concerts
2021 1 concert
2020 1 concert
2018 1 concert
2017 1 concert
2016 1 concert
2015 3 concerts
2014 1 concert
2012 1 concert
2009 2 concerts
2007 4 concerts
2006 1 concert
2001 1 concert
1998 1 concert
1995 1 concert
1991 1 concert
1987 1 concert
1980 1 concert