John Baez has seen concerts during 31 years.

Year   Concerts Seen  
2019 4 concerts
2018 2 concerts
2017 7 concerts
2016 2 concerts
2015 3 concerts
2014 3 concerts
2013 9 concerts
2012 8 concerts
2011 8 concerts
2010 6 concerts
2009 4 concerts
2008 4 concerts
2007 4 concerts
2006 2 concerts
2005 3 concerts
2004 7 concerts
2003 3 concerts
2002 3 concerts
2001 5 concerts
1999 5 concerts
1998 10 concerts
1997 15 concerts
1996 26 concerts
1995 18 concerts
1994 13 concerts
1993 12 concerts
1992 12 concerts
1991 9 concerts
1990 7 concerts
1989 2 concerts
1988 1 concert