| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2023 | $499M | -$43M | -7.94% | Dec 31, 2023 | 20-F | 2024-04-24 |
| Q4 2022 | $542M | -$84.5M | -13.5% | Dec 31, 2022 | 20-F | 2024-04-24 |
| Q4 2021 | $627M | +$69.1M | +12.4% | Dec 31, 2021 | 20-F | 2023-04-27 |
| Q4 2020 | $557M | +$555M | +23785% | Dec 31, 2020 | 20-F | 2022-04-28 |
| Q2 2020 | $8.18M | +$4.46M | +120% | Jun 30, 2020 | 6-K | 2020-09-30 |
| Q4 2019 | $2.33M | -$3.36M | -59% | Dec 31, 2019 | 20-F | 2021-03-31 |
| Q2 2019 | $3.72M | Jun 30, 2019 | 6-K | 2019-12-27 | ||
| Q4 2018 | $5.7M | -$9.86M | -63.4% | Dec 31, 2018 | 20-F | 2020-05-15 |
| Q4 2017 | $15.6M | -$989K | -5.98% | Dec 31, 2017 | 20-F | 2019-05-15 |
| Q4 2016 | $16.6M | +$2.68M | +19.3% | Dec 31, 2016 | 20-F/A | 2019-01-04 |
| Q4 2015 | $13.9M | -$7.37M | -34.7% | Dec 31, 2015 | 20-F | 2017-04-28 |
| Q4 2014 | $21.2M | -$21M | -49.7% | Dec 31, 2014 | 20-F | 2016-07-18 |
| Q2 2014 | $48.4M | +$7.05M | +17.1% | Jun 30, 2014 | 6-K | 2014-10-17 |
| Q4 2013 | $42.2M | +$3.92M | +10.3% | Dec 31, 2013 | 20-F | 2015-04-30 |
| Q2 2013 | $41.4M | +$5.48M | +15.3% | Jun 30, 2013 | 6-K/A | 2014-02-21 |
| Q4 2012 | $38.3M | +$3.31M | +9.45% | Dec 31, 2012 | 20-F | 2014-04-01 |
| Q3 2012 | $37.7M | -$6.65M | -15% | Sep 30, 2012 | 10-Q | 2012-11-13 |
| Q2 2012 | $35.9M | -$6.51M | -15.4% | Jun 30, 2012 | 10-Q | 2012-08-13 |
| Q1 2012 | $33.9M | Mar 31, 2012 | 10-Q | 2012-05-09 | ||
| Q4 2011 | $35M | -$1.91M | -5.17% | Dec 31, 2011 | 10-K | 2013-03-18 |
| Q3 2011 | $44.3M | Sep 30, 2011 | 10-Q | 2011-11-10 | ||
| Q2 2011 | $42.4M | Jun 30, 2011 | 10-Q | 2011-08-11 | ||
| Q4 2010 | $36.9M | Dec 31, 2010 | 10-K | 2012-03-19 |