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Exchange rates in US$ | 12 Months Ended
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Dec. 31, 2017
Disclosure Of Foreign Exchange Rates [Abstract] |
Exchange rates in US$ |
Strategic Report |  | Governance Report |  | Financial Statements |  | Production, Reserves and Operations |  | Additional Information
41 Exchange rates in US$ The principal exchange rates used in the preparation of the 2017 financial statements were:
|  | Full-year average |  | Year-end |
|  |  | 2017 |  |  | 2016 |  |  | 2015 |  |  | 2017 |  |  | 2016 |  |  | 2015 |
Sterling |  |  | 1.29 |  |  | 1.36 |  |  | 1.53 |  |  | 1.34 |  |  | 1.22 |  |  | 1.48 |
Australian dollar |  |  | 0.77 |  |  | 0.74 |  |  | 0.75 |  |  | 0.78 |  |  | 0.72 |  |  | 0.73 |
Canadian dollar |  |  | 0.77 |  |  | 0.76 |  |  | 0.78 |  |  | 0.79 |  |  | 0.74 |  |  | 0.72 |
Euro |  |  | 1.13 |  |  | 1.11 |  |  | 1.11 |  |  | 1.20 |  |  | 1.05 |  |  | 1.09 |
South African rand |  |  | 0.075 |  |  | 0.068 |  |  | 0.079 |  |  | 0.081 |  |  | 0.073 |  |  | 0.064 |
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- Definition Principal exchange rates compared to US$. + References No definition available. + Details
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