Zach Johnson has seen concerts during 17 years.

Year   Concerts Seen  
2023 26 concerts
2022 55 concerts
2021 12 concerts
2020 5 concerts
2019 8 concerts
2018 30 concerts
2017 4 concerts
2016 26 concerts
2015 63 concerts
2014 36 concerts
2013 20 concerts
2012 16 concerts
2011 12 concerts
2010 5 concerts
2009 2 concerts
2008 1 concert
2007 1 concert