Jrock has seen concerts during 15 years.

Year   Concerts Seen  
2019 1 concert
2018 4 concerts
2017 5 concerts
2016 3 concerts
2015 1 concert
2014 1 concert
2013 1 concert
2012 1 concert
2011 3 concerts
2010 1 concert
2007 1 concert
2005 4 concerts
2004 1 concert
2003 3 concerts
1996 1 concert