| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 26.2 | -1.53 | -5.52% | Sep 30, 2024 |
| Q2 2024 | 26.4 | -1.41 | -5.06% | Jun 30, 2024 |
| Q1 2024 | 27 | -0.36 | -1.32% | Mar 31, 2024 |
| Q4 2023 | 27.2 | -0.09 | -0.33% | Dec 31, 2023 |
| Q3 2023 | 27.7 | +0.76 | +2.82% | Sep 30, 2023 |
| Q2 2023 | 27.9 | +0.82 | +3.03% | Jun 30, 2023 |
| Q1 2023 | 27.4 | +0.18 | +0.66% | Mar 31, 2023 |
| Q4 2022 | 27.2 | +0.49 | +1.83% | Dec 31, 2022 |
| Q3 2022 | 26.9 | +0.1 | +0.37% | Sep 30, 2022 |
| Q2 2022 | 27 | +0.16 | +0.6% | Jun 30, 2022 |
| Q1 2022 | 27.2 | -0.08 | -0.29% | Mar 31, 2022 |
| Q4 2021 | 26.8 | -2.93 | -9.87% | Dec 31, 2021 |
| Q3 2021 | 26.8 | -0.45 | -1.65% | Sep 30, 2021 |
| Q2 2021 | 26.9 | -1.37 | -4.85% | Jun 30, 2021 |
| Q1 2021 | 27.3 | -1.39 | -4.85% | Mar 31, 2021 |
| Q4 2020 | 29.7 | +1.69 | +6.04% | Dec 31, 2020 |
| Q3 2020 | 27.3 | -0.95 | -3.36% | Sep 30, 2020 |
| Q2 2020 | 28.2 | -0.29 | -1.02% | Jun 30, 2020 |
| Q1 2020 | 28.7 | -0.66 | -2.25% | Mar 31, 2020 |
| Q4 2019 | 28 | -1.69 | -5.7% | Dec 31, 2019 |
| Q3 2019 | 28.2 | -8.37 | -22.9% | Sep 30, 2019 |
| Q2 2019 | 28.5 | -9.57 | -25.1% | Jun 30, 2019 |
| Q1 2019 | 29.3 | -10.1 | -25.6% | Mar 31, 2019 |
| Q4 2018 | 29.7 | -10.6 | -26.4% | Dec 31, 2018 |
| Q3 2018 | 36.6 | -3.51 | -8.75% | Sep 30, 2018 |
| Q2 2018 | 38.1 | -2.12 | -5.27% | Jun 30, 2018 |
| Q1 2018 | 39.4 | -0.32 | -0.81% | Mar 31, 2018 |
| Q4 2017 | 40.3 | +0.1 | +0.25% | Dec 31, 2017 |
| Q3 2017 | 40.1 | +0.89 | +2.27% | Sep 30, 2017 |
| Q2 2017 | 40.2 | +2.19 | +5.76% | Jun 30, 2017 |
| Q1 2017 | 39.8 | +0.67 | +1.71% | Mar 31, 2017 |
| Q4 2016 | 40.2 | +1.34 | +3.45% | Dec 31, 2016 |
| Q3 2016 | 39.2 | +1.22 | +3.21% | Sep 30, 2016 |
| Q2 2016 | 38 | -1.85 | -4.64% | Jun 30, 2016 |
| Q1 2016 | 39.1 | -0.14 | -0.36% | Mar 31, 2016 |
| Q4 2015 | 38.9 | -2.21 | -5.38% | Dec 31, 2015 |
| Q3 2015 | 38 | -6.22 | -14.1% | Sep 30, 2015 |
| Q2 2015 | 39.9 | -4.99 | -11.1% | Jun 30, 2015 |
| Q1 2015 | 39.2 | -6.57 | -14.3% | Mar 31, 2015 |
| Q4 2014 | 41.1 | -4 | -8.87% | Dec 31, 2014 |
| Q3 2014 | 44.2 | +0.48 | +1.1% | Sep 30, 2014 |
| Q2 2014 | 44.9 | +2.77 | +6.58% | Jun 30, 2014 |
| Q1 2014 | 45.8 | +4.03 | +9.65% | Mar 31, 2014 |
| Q4 2013 | 45.1 | +3.35 | +8.03% | Dec 31, 2013 |
| Q3 2013 | 43.7 | +1.51 | +3.58% | Sep 30, 2013 |
| Q2 2013 | 42.1 | -1.24 | -2.86% | Jun 30, 2013 |
| Q1 2013 | 41.8 | -1.72 | -3.96% | Mar 31, 2013 |
| Q4 2012 | 41.7 | -2.01 | -4.6% | Dec 31, 2012 |
| Q3 2012 | 42.2 | -1.97 | -4.46% | Sep 30, 2012 |
| Q2 2012 | 43.3 | -0.88 | -1.99% | Jun 30, 2012 |
| Q1 2012 | 43.5 | -0.65 | -1.47% | Mar 31, 2012 |
| Q4 2011 | 43.7 | +0.35 | +0.81% | Dec 31, 2011 |
| Q3 2011 | 44.2 | Sep 30, 2011 | ||
| Q2 2011 | 44.2 | Jun 30, 2011 | ||
| Q1 2011 | 44.1 | Mar 31, 2011 | ||
| Q4 2010 | 43.4 | Dec 31, 2010 |