Argentina,—,1st June 1991,
Australia,Australian States and mainland Territories,1st January 1987,
Austria,—,1st October 1988,
The Bahamas,—,1st January 1994,
Belize,—,1st October 1989,
Bosnia and Herzegovina,—,7th April 1992,
Burkina,—,1st August 1992,
Canada,Ontario,1st August 1986,
,New Brunswick,1st August 1986,
,British Columbia,1st August 1986,
,Manitoba,1st August 1986,
,Nova Scotia,1st August 1986,
,Newfoundland,1st August 1986,
,Prince Edward Island,1st August 1986,
,Quebec,1st August 1986,
,Yukon Territory,1st August 1986,
,Saskatchewan,1st November 1986,
,Alberta,1st February 1987,
,Northwest Territories,1st April 1988,
Chile,—,1st May 1994,
Colombia,—,1st March 1996,
Croatia,—,1st December 1991,
Cyprus,—,1st February 1995,
Denmark,—,1st July 1991,
Ecuador,—,1st April 1992,
Federal Republic of Yugoslavia,—,27th April 1992,
Finland,—,1st August 1994,
France,—,1st August 1986,
Georgia,—,1st October 1997,
Germany,—,1st December 1990,
Greece,—,1st June 1993,
Honduras,—,1st March 1994,
Hungary,—,1st September 1986,
Iceland,—,1st November 1996,
Republic of Ireland,—,1st October 1991,
Israel,—,1st December 1991,
Italy,—,1st May 1995,
Luxembourg,—,1st January 1987,
Macedonia,—,1st December 1991,
Mauritius,—,1st June 1993,
Mexico,—,1st September 1991,
Monaco,—,1st February 1993,
Netherlands,—,1st September 1990,
New Zealand,—,1st August 1991,
Norway,—,1st April 1989,
Panama,—,1st May 1994,
Poland,—,1st November 1992,
Portugal,—,1st August 1986,
Romania,—,1st February 1993,
St Kitts and Nevis,—,1st August 1994,
Slovenia,—,1st June 1994,
South Africa,—,1st October 1997,
Spain,—,1st September 1987,
Sweden,—,1st June 1989,
Switzerland,—,1st August 1986,
United States,—,1st July 1988,
Venezuela,—,1st January 1997,
Zimbabwe,—,1st July 1995,

Austria,—,1st August 1986,
Belgium,—,1st August 1986,
Cyprus,—,1st October 1986,
Denmark,—,1st August 1991,
Finland,—,1st August 1994,
France,—,1st August 1986,
Germany,—,1st February 1991,
Greece,—,1st July 1993,
Iceland,—,1st November 1996,
The Republic of Ireland,—,1st October 1991,
Italy,—,1st June 1995,
Liechtenstein,—,1st August 1997,
Luxembourg,—,1st August 1986,
Netherlands,—,1st September 1990,
Norway,—,1st May 1989,
Poland,—,1st March 1996,
Portugal,—,1st August 1986,
Spain,—,1st August 1986,
Sweden,—,1st July 1989,
Switzerland,—,1st August 1986,