Jonathan Sager has seen concerts during 22 years.

Year   Concerts Seen  
2025 3 concerts
2024 6 concerts
2023 15 concerts
2022 14 concerts
2021 3 concerts
2020 1 concert
2019 5 concerts
2018 17 concerts
2017 16 concerts
2016 9 concerts
2015 11 concerts
2014 11 concerts
2013 11 concerts
2012 7 concerts
2011 3 concerts
2010 3 concerts
2009 3 concerts
2008 3 concerts
2007 6 concerts
2006 4 concerts
2005 1 concert
2004 2 concerts