Olav Bouman has seen concerts during 12 years.

Year   Concerts Seen  
2023 1 concert
2022 2 concerts
2019 1 concert
2017 2 concerts
2009 2 concerts
2007 1 concert
1995 1 concert
1991 2 concerts
1988 2 concerts
1987 1 concert
1976 1 concert
1975 1 concert