Cash and cash equivalents
| Year ended December 31, | ||||||||||||
| 2017 | 2016 | 2015 | ||||||||||
| (In millions of US$) | ||||||||||||
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Cash |
229.6 | 415.1 | 318.5 | |||||||||
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Cash equivalents (mainly short-term deposits) |
85.8 | 123.7 | 66.8 | |||||||||
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Total cash and cash equivalents |
315.4 | 538.8 | 385.3 | |||||||||
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