David Hettenbach has seen concerts during 17 years.

Year   Concerts Seen  
2024 4 concerts
2023 2 concerts
2022 2 concerts
2021 1 concert
2019 1 concert
2018 3 concerts
2017 3 concerts
2015 1 concert
2014 1 concert
2012 1 concert
2010 2 concerts
2007 4 concerts
2006 1 concert
2005 1 concert
2002 1 concert
2001 2 concerts
1996 1 concert