NORWAY

10 April 1993

REPUBLIC OF MOLDOVA

4 January 1994

ALBANIA

5 January 1994

RUSSIAN FEDERATION

1 February 1994

HUNGARY

2 June 1994

LUXEMBOURG

8 August 1994

BULGARIA

12 May 1995

ARMENIA

21 February 1997

SPAIN

16 May 1997

GREECE

24 February 1998

EUROPEAN UNION

24 April 1998

GERMANY

9 September 1998

SWITZERLAND

21 May 1999

AUSTRIA

4 August 1999

FINLAND

13 September 1999

SWEDEN

22 September 1999

CROATIA

20 January 2000

ESTONIA

17 May 2000

CZECH REPUBLIC

12 June 2000

LITHUANIA

2 November 2000

KAZAKHSTAN

11 January 2001

DENMARK

28 March 2001

MONACO

28 August 2001

SLOVENIA

13 May 2002

ITALY

2 July 2002

UNITED KINGDOM

5 August 2002

ROMANIA

22 May 2003

BELARUS

25 June 2003

POLAND

8 September 2003

SLOVAKIA

9 September 2003

FRANCE

3 October 2003

AZERBAIJAN

16 June 2004

LATVIA

29 June 2004

CYPRUS

31 August 2005

BELGIUM

6 April 2006

PORTUGAL

2 November 2006

NETHERLANDS

6 November 2006

MONTENEGRO

19 May 2009

SERBIA

31 July 2009

FORMER YUGOSLAV REPUBLIC OF MACEDONIA

2 March 2010