Jason Gross has seen concerts during 12 years.

Year   Concerts Seen  
2022 12 concerts
2021 11 concerts
2020 2 concerts
2019 14 concerts
2018 11 concerts
2017 3 concerts
2016 5 concerts
2015 8 concerts
2014 8 concerts
2013 10 concerts
2012 6 concerts
2011 11 concerts