List of World Championships medalists in sailing (keelboat classes)
Flying Fifteen
Table:
Yearvte	Gold	Silver	Bronze

1979 Perth	Free 'N' Easy (AUS) John Cassidy Don Russell	Australia Graham Lillingston B. Thornley	Great Britain J. Royce M. Nokes

1980 Hayling Island	Segundo 1 (NZL) Barry Finlayson] Ian Norrie	Great Britain Eddie Gilmore Colin Coffey	Great Britain Bernie Trenowth Jr Peter Howard

1982 Napier	Zero G (AUS) Peter Gale Mark Rimmington	New Zealand Roger Craddock Stephen Battley	Great Britain John McCann William Bassett

1984 Kinsale	Gripple Nipper (AUS) Graham Lillingston Mike McKenzie	Great Britain Graham Bailey Bill Masterman	Great Britain Phil Morrison Martin Gotrel

1986 Hong Kong	Instant Replay (AUS) Glen Coulton Grant Schultz	Great Britain Phil Morrison Nigel Appleton	Australia Peter Gale Mark Rimmington

1988 Lowestoft	Deejay (GBR) Nigel Buckley Tim Hancock	Great Britain Greg Wells Steve Billingham	Australia Craig Rainey Simon Walsh

1990 Brisbane	Willie Wonka (GBR) Alan Bax Alan Lockhart	New Zealand Roger Craddock Steve Cunnold	Great Britain Ian Cleaver Greg Wells

1992 Dún Laoghaire	Funny Face (GBR) Ruper Mander Gareth Edwards	Australia Jamie Thompson Michael Brown	Great Britain Steve Goacher Phil Evans

1994 Timaru	Whiffler (NZL) Roger Craddock Steve Cunnold	New Zealand Andrew Ball Stuart Happ	Great Britain Rupert Mander Chris Hewkin

1995 Hong Kong	Great Britain Steve Goacher Phil Evans	Great Britain Ian Barker Bill Masterman	New Zealand Roger Craddock Steve Cunnold

1997 Cowes	Great Britain Steve Goacher Phil Evans	Great Britain Rupert Mander Chris Hewkin	Great Britain David McKee Sally McKee

1999 Esperance	Two Lunches (GBR) Steve Goacher Phil Evans	Great Britain Mike Hart Chris Gowers	Great Britain Alan Bax Bill Masterman

2001 Durban	Great Britain Charles Apthorp Andy Weatherspoon	Great Britain Steve Goacher Phil Evans	Great Britain Mike Hart Chris Gowers

2003 Dún Laoghaire	Great Britain Barry Parkin Sue Parkin	Great Britain Mike Hart Richard Rigg	Australia Rod Beurteaux Chris O'Keefe

2005 Auckland	Australia Nick Jerwood Janet Jerwood	Great Britain Charles Apthorp Alan Green	New Zealand Aaron Goodmanson Alister Rowlands

2007 Puerto Pollenca	Great Britain Mike Hart Tim Hall	Great Britain Steve Goacher Phil Evans	New Zealand Aaron Goodmanson Alister Rowlands

2009 Melbourne	Australia Grant Alderson Dean McAullay	Great Britain Barry Parkin Tim Hall	Great Britain Steve Goacher Phil Evans

2011 Hayling Island	Great Britain Graham Vials Chris Turner

2013 Hong Kong	Great Britain Graham Vials Chris Turner

2015 Crozon-Morgat	Great Britain Graham Vials Chris Turner

2017 Napier	Great Britain Steve Goacher Tim Harper

Based on the following table concerning 'List of World Championships medalists in sailing (keelboat classes)', section 'Flying Fifteen', formulate a single-sentence overview of the highlighted cells and format it within the following JSON object {"answer": "YOUR ANSWER"}.