Summary
2000 - Changes - Debut - Intai
2001 - Changes - Debut - Intai
2002 - Changes - Debut - Intai
2003 - Changes - Debut - Intai
2004 - Changes - Debut - Intai
2005 - Changes - Debut - Intai
2006 - Changes - Debut - Intai
2007 - Changes - Debut - Intai
2008 - Changes - Debut - Intai
2009 - Changes - Debut - Intai
2010 - Changes - Debut - Intai
2011 - Changes - Debut - Intai
2012 - Changes - Debut - Intai
2013 - Changes - Debut - Intai
2014 - Changes - Debut - Intai
2015 - Changes - Debut - Intai
2016 - Changes - Debut - Intai
2017 - Changes - Debut - Intai
2018 - Changes - Debut - Intai
2019 - Changes - Debut - Intai
2020 - Changes - Debut - Intai

Heya changes legend:
Heya OpeningX
Heya ClosureX
Personnel moveX
Inheritance (oyakata name change)X
Takeover (heya name change)X