Country

• Philippines (1) 

  Angola (1) Burundi (1) Cambodia (1) Central Bank of West African States (3) China (4) Ile Maurice (2) Kirghistan (4) Liberia (3) Mozambique (1) Nigeria (1) Romania (3) Singapore (1) Tajikistan (4) Togo (1) United States of America (1) Uzbekistan (1)

Year

• 1999 (1) 

  1942 (2) 1943 (3) 1949 (2) 1969 (2) 1978 (4) 1995 (1) 1998 (1) 2006 (1) 2007 (4) 2009 (3) 2010 (2) 2016 (1) 2018 (1) Undated (7)