| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q2 2019 | 510M | -1.11B | -68.5% | 30 Jun 2019 | 6-K | 14 Aug 2019 |
| Q4 2018 | 1.86B | +375M | +25.3% | 31 Dec 2018 | 20-F | 22 Mar 2019 |
| Q2 2018 | 1.62B | 30 Jun 2018 | 6-K | 08 Aug 2018 | ||
| Q4 2017 | 1.48B | -146M | -8.97% | 31 Dec 2017 | 20-F | 22 Mar 2019 |
| Q4 2016 | 1.63B | -20M | -1.21% | 31 Dec 2016 | 20-F | 22 Mar 2019 |
| Q4 2015 | 1.65B | 31 Dec 2015 | 20-F/A | 28 Mar 2018 |