Robert Alphenaar has seen concerts during 18 years.

Year   Concerts Seen  
2023 4 concerts
2022 8 concerts
2021 2 concerts
2019 1 concert
2018 2 concerts
2016 3 concerts
2015 2 concerts
2013 1 concert
2012 1 concert
2011 1 concert
2010 3 concerts
2009 1 concert
2007 1 concert
1999 1 concert
1997 1 concert
1986 1 concert
1984 1 concert
1983 1 concert