2013 - Le Toronto Star
2012 - Postmedia et The Ottawa Citizen
2011 - Le Times Colonist
2010 - The Fifth Estate (CBC)
2009 - The Gazette
2008 - CBC/Radio-Canada et la Presse Canadienne
2007 - La Presse et le Globe and Mail
2006 - Prince George Citizen
2005 - The Globe and Mail
2004 - The Globe and Mail
2003 - La Presse
2002 - Le Toronto Star
2001 - Le Kitchener-Waterloo Record
2000 - The Fifth Estate - CBC Television
1999 - La Radio du Réseau CBC de Winnipeg
1998 - The Toronto Star
1997 - Le Daily News - Halifax
1996 - The Toronto Star
1995 - CBC Radio - Ottawa, Ont.
1994 - CKNW / 98 - New Westminster B.C.
1993 - Ottawa Citizen et le Globe and Mail
1992 - Edmonton Journal
1991 - CBC-TV (Toronto et Winnipeg)
1990 - Elmira Independent
1989 - Le Devoir, Montréal
1988 - Toronto Globe and Mail
1987 - CBC-TV et Southam News
1986 - Toronto Globe and Mail
1985 - Globe and Mail et le Toronto Star
1984 - Kingston Whig-Standard
1983 - Kitchener-Waterloo Record
1982 - Manitoulin Expositor, Little Current, Ont.
1981 - CFTM-TV (Télé-Métropole) et le Kitchener-Waterloo Record
1980 - Edmonton Journal
1979 - Kingston Whig-Standard
1978 - Kitchener-Waterloo Record
1977 - Toronto Globe and Mail
1976 - Vancouver Sun
1975 - Montreal Gazette et le London Free Press
1974 - Montreal Gazette
1973 - CTV Television Network Ltd.
1972 - Globe and Mail et le Halifax Scotian Journalist
1971 - CBC Television
1970 - The Financial Post et CBC-TV