| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q4 2024 | 13 | +1.58 | +13.9% | Dec 31, 2024 |
| Q3 2024 | 12.4 | +0.39 | +3.24% | Sep 30, 2024 |
| Q2 2024 | 11.9 | -0.72 | -5.71% | Jun 30, 2024 |
| Q1 2024 | 10.9 | -2.82 | -20.6% | Mar 31, 2024 |
| Q4 2023 | 11.4 | -1.55 | -12% | Dec 31, 2023 |
| Q3 2023 | 12.1 | -0.92 | -7.09% | Sep 30, 2023 |
| Q2 2023 | 12.6 | -0.44 | -3.37% | Jun 30, 2023 |
| Q1 2023 | 13.7 | -2.27 | -14.2% | Mar 31, 2023 |
| Q4 2022 | 12.9 | -5.77 | -30.9% | Dec 31, 2022 |
| Q3 2022 | 13 | -7.78 | -37.5% | Sep 30, 2022 |
| Q2 2022 | 13 | -9.8 | -42.9% | Jun 30, 2022 |
| Q1 2022 | 16 | -4.95 | -23.7% | Mar 31, 2022 |
| Q4 2021 | 18.7 | -1.75 | -8.56% | Dec 31, 2021 |
| Q3 2021 | 20.8 | -1.06 | -4.86% | Sep 30, 2021 |
| Q2 2021 | 22.8 | -0.24 | -1.04% | Jun 30, 2021 |
| Q1 2021 | 20.9 | -4.04 | -16.2% | Mar 31, 2021 |
| Q4 2020 | 20.4 | -6.32 | -23.6% | Dec 31, 2020 |
| Q3 2020 | 21.8 | +2.4 | +12.4% | Sep 30, 2020 |
| Q2 2020 | 23.1 | +4.3 | +22.9% | Jun 30, 2020 |
| Q1 2020 | 25 | +5.79 | +30.2% | Mar 31, 2020 |
| Q4 2019 | 26.8 | +6.65 | +33.1% | Dec 31, 2019 |
| Q3 2019 | 19.4 | -10.2 | -34.5% | Sep 30, 2019 |
| Q2 2019 | 18.8 | -12.7 | -40.3% | Jun 30, 2019 |
| Q1 2019 | 19.2 | -12.8 | -40% | Mar 31, 2019 |
| Q4 2018 | 20.1 | -10.4 | -34% | Dec 31, 2018 |
| Q3 2018 | 29.6 | +0.41 | +1.4% | Sep 30, 2018 |
| Q2 2018 | 31.5 | +2.5 | +8.63% | Jun 30, 2018 |
| Q1 2018 | 31.9 | +3.02 | +10.4% | Mar 31, 2018 |
| Q4 2017 | 30.5 | +1.93 | +6.76% | Dec 31, 2017 |
| Q3 2017 | 29.2 | +0.43 | +1.49% | Sep 30, 2017 |
| Q2 2017 | 29 | -0.08 | -0.28% | Jun 30, 2017 |
| Q1 2017 | 28.9 | +0.85 | +3.03% | Mar 31, 2017 |
| Q4 2016 | 28.6 | +0.83 | +2.99% | Dec 31, 2016 |
| Q3 2016 | 28.8 | +1.6 | +5.88% | Sep 30, 2016 |
| Q2 2016 | 29 | +2.78 | +10.6% | Jun 30, 2016 |
| Q1 2016 | 28.1 | +0.94 | +3.46% | Mar 31, 2016 |
| Q4 2015 | 27.7 | -0.28 | -1% | Dec 31, 2015 |
| Q3 2015 | 27.2 | -0.86 | -3.07% | Sep 30, 2015 |
| Q2 2015 | 26.3 | -0.21 | -0.79% | Jun 30, 2015 |
| Q1 2015 | 27.1 | +2.95 | +12.2% | Mar 31, 2015 |
| Q4 2014 | 28 | +5.75 | +25.8% | Dec 31, 2014 |
| Q3 2014 | 28.1 | +7 | +33.3% | Sep 30, 2014 |
| Q2 2014 | 26.5 | +4.37 | +19.8% | Jun 30, 2014 |
| Q1 2014 | 24.2 | +1.43 | +6.28% | Mar 31, 2014 |
| Q4 2013 | 22.3 | -1.1 | -4.71% | Dec 31, 2013 |
| Q3 2013 | 21.1 | -3.1 | -12.8% | Sep 30, 2013 |
| Q2 2013 | 22.1 | -1.54 | -6.52% | Jun 30, 2013 |
| Q1 2013 | 22.8 | -1.36 | -5.64% | Mar 31, 2013 |
| Q4 2012 | 23.4 | -1.52 | -6.11% | Dec 31, 2012 |
| Q3 2012 | 24.2 | -1.36 | -5.33% | Sep 30, 2012 |
| Q2 2012 | 23.6 | -2.45 | -9.39% | Jun 30, 2012 |
| Q1 2012 | 24.1 | -1.78 | -6.87% | Mar 31, 2012 |
| Q4 2011 | 24.9 | +0.1 | +0.4% | Dec 31, 2011 |
| Q3 2011 | 25.5 | Sep 30, 2011 | ||
| Q2 2011 | 26.1 | Jun 30, 2011 | ||
| Q1 2011 | 25.9 | Mar 31, 2011 | ||
| Q4 2010 | 24.8 | Dec 31, 2010 |