1955 Trial by Jury	1957 The Sorcerer	1958 HMS Pinafore
1959 The Pirates of Penzance	1960 The Mikado	1961 Patience
1962 Iolanthe	1963 The Yeomen of the Guard	1964 The Gondoliers
1965 The Mikado	1966 Ruddigore	1967 The Pirates of Penzance
1968 HMS Pinafore	1969 Merrie England	1970 The Geisha
1971 The Gondoliers	1972 Iolanthe	1973 The Yeomen of the Guard
1974 The Pirates of Penzance	1975 Patience	1976 The Mikado
1977 Trial by Jury / HMS Pinafore	1978 The Gondoliers	1979 Princess Ida
1980 Iolanthe	1981 Ruddigore	1982 The Pirates of Penzance
1983 The Mikado	1984 The Yeomen of the Guard	1985 Cox and Box / HMS Pinafore
1986 The Gondoliers	1987 Patience	1988 Ruddigore
1989 The Pirates of Penzance	1990 Princess Ida	1991 Iolanthe
1992 The Mikado	1993 The Yeomen of the Guard	1994 The Gondoliers
1995 Trial by Jury / HMS Pinafore	1996 The Pirates of Penzance	1997 Patience
1998 Ruddigore	1999 The Mikado	2000 Iolanthe
2001 Princess Ida	2002 The Gondoliers	2003 The Yeomen of the Guard
2004 HMS Pinafore	2005 Trial by Jury / The Pirates of Penzance	2006 Patience
2007 The Mikado	2008 Ruddigore	2009 The Gondoliers
2010 Iolanthe	2011 The Sorcerer	2012 Cox and Box / HMS Pinafore
2013 Princess Ida	2014 The Yeomen of the Guard	2015 The Pirates of Penzance
2016 Patience	2017 Ruddigore	2018 The Mikado
2019 Thespis	2020 Iolanthe	2021 TBD