| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2021 | 35.5M | +10M | +39.4% | 31 Dec 2021 | 20-F | 28 Apr 2022 |
| Q4 2020 | 25.4M | +1.85M | +7.85% | 31 Dec 2020 | 20-F | 28 Apr 2022 |
| Q4 2019 | 23.6M | -1.09M | -4.42% | 31 Dec 2019 | 20-F | 22 Apr 2021 |
| Q4 2018 | 24.7M | +97K | +0.4% | 31 Dec 2018 | 20-F | 28 Apr 2020 |
| Q4 2017 | 24.6M | -575K | -2.29% | 31 Dec 2017 | 20-F | 29 Apr 2019 |
| Q4 2016 | 25.2M | -4.42M | -14.9% | 31 Dec 2016 | 20-F | 23 Apr 2018 |
| Q4 2015 | 29.6M | +5.54M | +23.1% | 31 Dec 2015 | 20-F | 06 Apr 2017 |
| Q4 2014 | 24M | -14.4M | -37.5% | 31 Dec 2014 | 20-F | 07 Apr 2016 |
| Q4 2013 | 38.5M | +4.16M | +12.1% | 31 Dec 2013 | 20-F | 09 Apr 2015 |
| Q4 2012 | 34.3M | -7.48M | -17.9% | 31 Dec 2012 | 20-F | 11 Apr 2014 |
| Q4 2011 | 41.8M | -10.8M | -20.5% | 31 Dec 2011 | 20-F/A | 23 Apr 2013 |
| Q4 2010 | 52.6M | 31 Dec 2010 | 20-F | 12 Apr 2012 |