Richard If has seen concerts during 16 years.

Year   Concerts Seen  
2023 2 concerts
2022 1 concert
2019 1 concert
2018 2 concerts
2017 1 concert
2015 4 concerts
2011 3 concerts
2005 1 concert
2001 3 concerts
1997 2 concerts
1992 1 concert
1990 1 concert
1989 1 concert
1987 4 concerts
1985 1 concert
1984 1 concert