Katja has seen concerts during 23 years.

Year   Concerts Seen  
2024 1 concert
2023 1 concert
2022 3 concerts
2020 1 concert
2019 7 concerts
2018 7 concerts
2017 8 concerts
2016 5 concerts
2015 6 concerts
2014 4 concerts
2013 4 concerts
2012 9 concerts
2011 5 concerts
2010 2 concerts
2009 7 concerts
2008 3 concerts
2007 1 concert
2006 1 concert
2005 3 concerts
2003 2 concerts
2002 1 concert
1999 1 concert
1988 1 concert