Mary Sheehan has seen concerts during 11 years.

Year   Concerts Seen  
2023 4 concerts
2022 5 concerts
2021 1 concert
2019 3 concerts
2018 3 concerts
2017 4 concerts
2016 6 concerts
2015 6 concerts
2014 4 concerts
2013 7 concerts
2012 1 concert