David Aaron has seen concerts during 12 years.

Year   Concerts Seen  
2022 1 concert
2021 2 concerts
2020 4 concerts
2019 12 concerts
2018 11 concerts
2017 8 concerts
2016 12 concerts
2015 20 concerts
2014 8 concerts
2013 11 concerts
2012 1 concert
2010 3 concerts