o • Congo Congo' Costa Rica Croatia " Cuba Cuba Cuba Cyprus Czech Republic Czech Republic Denmark Dominica Dominican Republic Ecuador Ecuador Supplementary Egypt Signed; March 1, 1933 June 8. 1972 June 3, 1996 June 10, 1997 May 14, 1974 September 4, 1990 January 8, 1998 March 9, 1990 February 2