| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q4 2024 | 20.9 | -1.55 | -6.9% | Dec 31, 2024 |
| Q3 2024 | 21.3 | -3.26 | -13.3% | Sep 30, 2024 |
| Q2 2024 | 22.1 | -3.68 | -14.3% | Jun 30, 2024 |
| Q1 2024 | 21.6 | -8.03 | -27.1% | Mar 31, 2024 |
| Q4 2023 | 22.5 | -8.96 | -28.5% | Dec 31, 2023 |
| Q3 2023 | 24.5 | -10.3 | -29.6% | Sep 30, 2023 |
| Q2 2023 | 25.8 | -12.1 | -31.9% | Jun 30, 2023 |
| Q1 2023 | 29.6 | -9.85 | -25% | Mar 31, 2023 |
| Q4 2022 | 31.4 | -8.4 | -21.1% | Dec 31, 2022 |
| Q3 2022 | 34.8 | -3.51 | -9.15% | Sep 30, 2022 |
| Q2 2022 | 37.9 | +0.89 | +2.41% | Jun 30, 2022 |
| Q1 2022 | 39.5 | +3.09 | +8.5% | Mar 31, 2022 |
| Q4 2021 | 39.8 | +3.34 | +9.16% | Dec 31, 2021 |
| Q3 2021 | 38.4 | +1.7 | +4.64% | Sep 30, 2021 |
| Q2 2021 | 37 | +0.62 | +1.71% | Jun 30, 2021 |
| Q1 2021 | 36.4 | +0.32 | +0.89% | Mar 31, 2021 |
| Q4 2020 | 36.5 | +1.53 | +4.38% | Dec 31, 2020 |
| Q3 2020 | 36.7 | +2.51 | +7.35% | Sep 30, 2020 |
| Q2 2020 | 36.4 | +2.68 | +7.96% | Jun 30, 2020 |
| Q1 2020 | 36 | +1.46 | +4.22% | Mar 31, 2020 |
| Q4 2019 | 35 | -0.99 | -2.76% | Dec 31, 2019 |
| Q3 2019 | 34.1 | -5.18 | -13.2% | Sep 30, 2019 |
| Q2 2019 | 33.7 | -7.52 | -18.3% | Jun 30, 2019 |
| Q1 2019 | 34.6 | -7.8 | -18.4% | Mar 31, 2019 |
| Q4 2018 | 35.9 | -7.43 | -17.1% | Dec 31, 2018 |
| Q3 2018 | 39.3 | -0.56 | -1.4% | Sep 30, 2018 |
| Q2 2018 | 41.2 | +0.11 | +0.27% | Jun 30, 2018 |
| Q1 2018 | 42.4 | +1.2 | +2.91% | Mar 31, 2018 |
| Q4 2017 | 43.4 | +1.24 | +2.94% | Dec 31, 2017 |
| Q3 2017 | 39.9 | -0.94 | -2.3% | Sep 30, 2017 |
| Q2 2017 | 41.1 | +3.85 | +10.3% | Jun 30, 2017 |
| Q1 2017 | 41.2 | +3 | +7.86% | Mar 31, 2017 |
| Q4 2016 | 42.1 | +2.69 | +6.82% | Dec 31, 2016 |
| Q3 2016 | 40.8 | -1.82 | -4.27% | Sep 30, 2016 |
| Q2 2016 | 37.3 | -11.5 | -23.5% | Jun 30, 2016 |
| Q1 2016 | 38.2 | -11.9 | -23.7% | Mar 31, 2016 |
| Q4 2015 | 39.5 | -24.2 | -38% | Dec 31, 2015 |
| Q3 2015 | 42.6 | -35.6 | -45.5% | Sep 30, 2015 |
| Q2 2015 | 48.7 | -43.7 | -47.3% | Jun 30, 2015 |
| Q1 2015 | 50.1 | -50.1 | -50% | Mar 31, 2015 |
| Q4 2014 | 63.6 | -31.5 | -33.1% | Dec 31, 2014 |
| Q3 2014 | 78.2 | -10 | -11.3% | Sep 30, 2014 |
| Q2 2014 | 92.4 | +10.5 | +12.8% | Jun 30, 2014 |
| Q1 2014 | 100 | +21.8 | +27.7% | Mar 31, 2014 |
| Q4 2013 | 95.1 | +21.7 | +29.6% | Dec 31, 2013 |
| Q3 2013 | 88.2 | +20.1 | +29.5% | Sep 30, 2013 |
| Q2 2013 | 82 | +20.2 | +32.6% | Jun 30, 2013 |
| Q1 2013 | 78.4 | Mar 31, 2013 | ||
| Q4 2012 | 73.4 | Dec 31, 2012 | ||
| Q3 2012 | 68.1 | Sep 30, 2012 | ||
| Q2 2012 | 61.8 | Jun 30, 2012 | ||
| Q1 2011 | 58.8 | Mar 31, 2011 |