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Long-term debt - Maturity profile (Details) - ZAR (R) R in Millions | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
--- | --- | --- | ---
Maturity profile |  |  |
Total long-term debt | R 109,454 | R 81,405 | R 79,877
Within one year |  |  |
Maturity profile |  |  |
Total long-term debt | 12,763 | 7,093 |
One to five years |  |  |
Maturity profile |  |  |
Total long-term debt | 72,899 | 58,933 |
More than five years |  |  |
Maturity profile |  |  |
Total long-term debt | R 23,792 | R 15,379 |

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