| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 37.2 | -0.35 | -0.93% | Mar 31, 2024 |
| Q4 2023 | 37.9 | +0.33 | +0.88% | Dec 31, 2023 |
| Q3 2023 | 38 | -0.13 | -0.34% | Sep 30, 2023 |
| Q2 2023 | 37.7 | -1.11 | -2.86% | Jun 30, 2023 |
| Q1 2023 | 37.6 | -1.98 | -5.01% | Mar 31, 2023 |
| Q4 2022 | 37.6 | -2.34 | -5.87% | Dec 31, 2022 |
| Q3 2022 | 38.1 | -2.22 | -5.51% | Sep 30, 2022 |
| Q2 2022 | 38.8 | -4.33 | -10% | Jun 30, 2022 |
| Q1 2022 | 39.5 | -9.04 | -18.6% | Mar 31, 2022 |
| Q4 2021 | 39.9 | -10.7 | -21.1% | Dec 31, 2021 |
| Q3 2021 | 40.3 | -12.6 | -23.8% | Sep 30, 2021 |
| Q2 2021 | 43.2 | -8.9 | -17.1% | Jun 30, 2021 |
| Q1 2021 | 48.6 | +0.44 | +0.91% | Mar 31, 2021 |
| Q4 2020 | 50.5 | +1.07 | +2.16% | Dec 31, 2020 |
| Q3 2020 | 52.9 | +3.69 | +7.5% | Sep 30, 2020 |
| Q2 2020 | 52.1 | -0.31 | -0.59% | Jun 30, 2020 |
| Q1 2020 | 48.1 | -7.22 | -13% | Mar 31, 2020 |
| Q4 2019 | 49.5 | -9 | -15.4% | Dec 31, 2019 |
| Q3 2019 | 49.2 | -13.3 | -21.3% | Sep 30, 2019 |
| Q2 2019 | 52.4 | -10.6 | -16.8% | Jun 30, 2019 |
| Q1 2019 | 55.3 | -3.5 | -5.95% | Mar 31, 2019 |
| Q4 2018 | 58.5 | +4.96 | +9.27% | Dec 31, 2018 |
| Q3 2018 | 62.5 | +13.9 | +28.5% | Sep 30, 2018 |
| Q2 2018 | 62.9 | +18.8 | +42.5% | Jun 30, 2018 |
| Q1 2018 | 58.8 | +11.4 | +24% | Mar 31, 2018 |
| Q4 2017 | 53.5 | +1.53 | +2.94% | Dec 31, 2017 |
| Q3 2017 | 48.6 | -6.18 | -11.3% | Sep 30, 2017 |
| Q2 2017 | 44.2 | -14.3 | -24.5% | Jun 30, 2017 |
| Q1 2017 | 47.5 | -9.59 | -16.8% | Mar 31, 2017 |
| Q4 2016 | 52 | -2.75 | -5.03% | Dec 31, 2016 |
| Q3 2016 | 54.8 | -1.05 | -1.88% | Sep 30, 2016 |
| Q2 2016 | 58.5 | +2.17 | +3.85% | Jun 30, 2016 |
| Q1 2016 | 57.1 | -0.67 | -1.16% | Mar 31, 2016 |
| Q4 2015 | 54.7 | -6.43 | -10.5% | Dec 31, 2015 |
| Q3 2015 | 55.9 | -6.51 | -10.4% | Sep 30, 2015 |
| Q2 2015 | 56.3 | +1.97 | +3.62% | Jun 30, 2015 |
| Q1 2015 | 57.7 | +11.4 | +24.6% | Mar 31, 2015 |
| Q4 2014 | 61.2 | +23.3 | +61.7% | Dec 31, 2014 |
| Q3 2014 | 62.4 | +29.3 | +88.5% | Sep 30, 2014 |
| Q2 2014 | 54.4 | +14.8 | +37.4% | Jun 30, 2014 |
| Q1 2014 | 46.3 | -0.05 | -0.11% | Mar 31, 2014 |
| Q4 2013 | 37.8 | -19 | -33.5% | Dec 31, 2013 |
| Q3 2013 | 33.1 | -27.1 | -45% | Sep 30, 2013 |
| Q2 2013 | 39.6 | -24 | -37.8% | Jun 30, 2013 |
| Q1 2013 | 46.4 | -23.3 | -33.5% | Mar 31, 2013 |
| Q4 2012 | 56.8 | -14.6 | -20.5% | Dec 31, 2012 |
| Q3 2012 | 60.2 | -13.1 | -17.9% | Sep 30, 2012 |
| Q2 2012 | 63.6 | -19.7 | -23.7% | Jun 30, 2012 |
| Q1 2012 | 69.7 | -29.6 | -29.8% | Mar 31, 2012 |
| Q4 2011 | 71.5 | Dec 31, 2011 | ||
| Q3 2011 | 73.3 | Sep 30, 2011 | ||
| Q2 2011 | 83.3 | Jun 30, 2011 | ||
| Q1 2011 | 99.3 | Mar 31, 2011 |