Timeline

• 27.09.1967
• Resolution of the IMF Board of Governance on the creation of the Special Drawing Rights (SDR); effective 01.01.1970 after ratification of the amended articles of constitution by all IMF members on 18.07.1969.
  - Until mid-1971, the value of 1 SDR unit was 1 US Dollar, and the equivalent of ¹⁄₃₅ of a Troy ounce fine gold afterwards.
• 01.07.1974
• Peg of the SDR unit to a trade-weighted basket of sixteen currencies whose issuers each accounted for more than 1% of world exports of goods and services in the period 1968-1972: United States (33.0%), F.R. Germany (12.5%), United Kingdom (9.0%), France (7.5%), Japan (7.5%), Canada (6.0%), Italy (6.0%), Netherlands (4.5%), Belgium (3.5%), Sweden (2.5%), Australia (1.5%), Denmark (1.5%), Norway (1.5%), Spain (1.5%), Austria (1.0%), South Africa (1.0%).
  
  - Valuation: 1 SDR unit = 0.40 US Dollar + 0.38 German Mark (1948) + 0.045 British Pound + 0.44 French Franc (1958)
                                                                 + 26 Japanese Yen + 0.071 Canadian Dollar + 47 Italian Lire + 0.14 Netherlands Guilder
                                                                 + 1.6 Belgian Francs + 0.13 Swedish Crown + 0.012 Australian Dollar + 0.11 Danish Crown
                                                                 + 0.099 Norwegian Crown + 1.1 Spanish Pesetas (1.5%) + 0.22 Austrian Shilling + 0.0082 South African Rand.
• 31.03.1978
• Abolition of the system of par values against gold
• 01.07.1978
• Peg of the SDR unit to a trade-weighted basket of sixteen currencies whose issuers each accounted for more than 1% of world exports of goods and services in the period 1972-1976: United States (33.0%), F.R. Germany (12.5%), United Kingdom (9.0%), France (7.5%), Japan (7.5%), Canada (5.0%), Italy (5.0%), Netherlands (5.0%), Belgium (4.0%), Saudi Arabia (3.0%), Iran (2.0%), Sweden (2.0%), Australia (1.5%), Norway (1.5%), Spain (1.5%), Austria (1.5%).
  
  - Valuation: 1 SDR unit = 0.40 US Dollar + 0.32 German Mark (1948) + 0.050 British Pound + 0.42 French Franc (1958)
                                                                 + 21 Japanese Yen + 0.070 Canadian Dollar + 52 Italian Lire + 0.14 Netherlands Guilder
                                                                 + 1.6 Belgian Francs + 0.13 Saudi Arabian Riyal + 1.7 Iranian Rials + 0.11 Swedish Crown
                                                                 + 0.017 Australian Dollar + 0.10 Norwegian Crown + 1.5 Spanish Pesetas (1.5%) + 0.28 Austrian Shilling.
• 01.01.1981
• Peg of the SDR unit to a fixed basket of five currencies: United States (42%), F.R. Germany (19%), United Kingdom (13%), France (13%), Japan (13%).
  
  - Valuation: 1 SDR unit = 0.54 US Dollar + 0.46 German Mark (1948) + 0.071 British Pound + 0.74 French Franc (1958) + 34 Japanese Yen.
• 01.01.1986
• Peg of the SDR unit to a fixed basket of five currencies: United States (42%), F.R. Germany (19%), Japan (15%), United Kingdom (12%), France (12%).
  
  - Valuation: 1 SDR unit = 0.452 US Dollar + 0.527 German Mark (1948) + 33.4 Japanese Yen + 0.0893 British Pound + 1.020 French Francs (1958).
• 01.01.1991
• Peg of the SDR unit to a fixed basket of five currencies: United States (40%), Germany (21%), Japan (17%), United Kingdom (11%), France (11%).
  
  - Valuation: 1 SDR unit = 0.453 US Dollar + 0.572 German Mark (1948) + 31.8 Japanese Yen + 0.0812 British Pound + 0.800 French Franc (1958).
• 01.01.1996
• Peg of the SDR unit to a fixed basket of five currencies: United States (39%), Germany (21%), Japan (18%), United Kingdom (11%), France (11%).
  
  - Valuation: 1 SDR unit = 0.582 US Dollar + 0.446 German Mark (1948) + 27.2 Japanese Yen + 0.105 British Pound + 0.813 French Franc (1958).
• 01.01.1999
• Adjustment of the currency basket of the SDR unit to the introduction of the Euro: United States (39%), Europe (31%), Japan (18%), United Kingdom (11%).
  
  - Valuation: 1 SDR unit = 0.582 US Dollar + 0.3519 European Euro + 27.2 Japanese Yen + 0.105 British Pound.
• 01.01.2001
• Peg of the SDR unit to a fixed basket of four currencies: United States (44%), Europe (31%), Japan (14%), United Kingdom (11%).
  
  - Valuation: 1 SDR unit = 0.577 US Dollar + 0.426 European Euro + 21 Japanese Yen + 0.0984 British Pound.
• 01.01.2006
• Peg of the SDR unit to a fixed basket of four currencies: United States (44%), Europe (34%), Japan (11%), United Kingdom (11%).
  
  - Valuation: 1 SDR unit = 0.632 US Dollar + 0.410 European Euro + 18.4 Japanese Yen + 0.0903 British Pound.
• 01.01.2011
• Peg of the SDR unit to a fixed basket of four currencies: United States (41.9%), Europe (37.4%), United Kingdom (11.3%), Japan (9.4%).
  
  - Valuation: 1 SDR unit = 0.660 US Dollar + 0.423 European Euro + 0.1110 British Pound + 12.1 Japanese Yen.
• 01.10.2016
• Peg of the SDR unit to a fixed basket of five currencies: United States (41.73%), Europe (30.93%), P.R. China (10.92%), United Kingdom (8.09%), Japan (8.33%).
  
  - Valuation: 1 SDR unit = 0.58252 US Dollar + 0.38671 European Euro + 1.0174 Chinese Yuan (1955) + 0.085946 British Pound + 11.9 Japanese Yen.
• 01.08.2022
• Peg of the SDR unit to a fixed basket of five currencies: United States (43.38%), Europe (29.31%), P.R. China (12.28%), Japan (7.59%), United Kingdom (7.44%).
  
  - Valuation: 1 SDR unit = 0.57813 US Dollar + 0.37379 European Euro + 1.0993 Chinese Yuan (1955) + 13.452 Japanese Yen + 0.080870 British Pound.

Valuation Regimes

• 1970-1974
• Fixed rate against gold
• 1974-
• Variable rate (peg to currency basket)