| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 17.6 | -2.68 | -13.2% | Sep 30, 2024 |
| Q2 2024 | 17.5 | -3.55 | -16.9% | Jun 30, 2024 |
| Q1 2024 | 18.2 | -3.05 | -14.3% | Mar 31, 2024 |
| Q4 2023 | 20 | -1.57 | -7.29% | Dec 31, 2023 |
| Q3 2023 | 20.3 | -1.11 | -5.19% | Sep 30, 2023 |
| Q2 2023 | 21.1 | +0.48 | +2.33% | Jun 30, 2023 |
| Q1 2023 | 21.3 | +1.1 | +5.45% | Mar 31, 2023 |
| Q4 2022 | 21.5 | +1.87 | +9.51% | Dec 31, 2022 |
| Q3 2022 | 21.4 | +2.21 | +11.5% | Sep 30, 2022 |
| Q2 2022 | 20.6 | +1.01 | +5.16% | Jun 30, 2022 |
| Q1 2022 | 20.2 | +1.15 | +6.04% | Mar 31, 2022 |
| Q4 2021 | 19.7 | +1.75 | +9.77% | Dec 31, 2021 |
| Q3 2021 | 19.2 | +1.48 | +8.36% | Sep 30, 2021 |
| Q2 2021 | 19.6 | +3.24 | +19.9% | Jun 30, 2021 |
| Q1 2021 | 19 | +3.47 | +22.3% | Mar 31, 2021 |
| Q4 2020 | 17.9 | +2.26 | +14.4% | Dec 31, 2020 |
| Q3 2020 | 17.7 | +2.29 | +14.9% | Sep 30, 2020 |
| Q2 2020 | 16.3 | +0.4 | +2.51% | Jun 30, 2020 |
| Q1 2020 | 15.6 | -1.01 | -6.1% | Mar 31, 2020 |
| Q4 2019 | 15.7 | -1.15 | -6.84% | Dec 31, 2019 |
| Q3 2019 | 15.4 | -1.6 | -9.41% | Sep 30, 2019 |
| Q2 2019 | 15.9 | -0.85 | -5.07% | Jun 30, 2019 |
| Q1 2019 | 16.6 | -0.05 | -0.3% | Mar 31, 2019 |
| Q4 2018 | 16.8 | -0.25 | -1.47% | Dec 31, 2018 |
| Q3 2018 | 17 | -0.29 | -1.68% | Sep 30, 2018 |
| Q2 2018 | 16.8 | -1.13 | -6.31% | Jun 30, 2018 |
| Q1 2018 | 16.6 | -2.1 | -11.2% | Mar 31, 2018 |
| Q4 2017 | 17.1 | -2.59 | -13.2% | Dec 31, 2017 |
| Q3 2017 | 17.3 | -3.96 | -18.6% | Sep 30, 2017 |
| Q2 2017 | 17.9 | -4 | -18.3% | Jun 30, 2017 |
| Q1 2017 | 18.7 | -2.18 | -10.4% | Mar 31, 2017 |
| Q4 2016 | 19.6 | -1.22 | -5.85% | Dec 31, 2016 |
| Q3 2016 | 21.3 | +0.03 | +0.14% | Sep 30, 2016 |
| Q2 2016 | 21.9 | -0.77 | -3.4% | Jun 30, 2016 |
| Q1 2016 | 20.9 | -4.29 | -17% | Mar 31, 2016 |
| Q4 2015 | 20.9 | -5.84 | -21.9% | Dec 31, 2015 |
| Q3 2015 | 21.2 | -5.76 | -21.3% | Sep 30, 2015 |
| Q2 2015 | 22.7 | -4.1 | -15.3% | Jun 30, 2015 |
| Q1 2015 | 25.2 | -2.14 | -7.83% | Mar 31, 2015 |
| Q4 2014 | 26.7 | -1.02 | -3.68% | Dec 31, 2014 |
| Q3 2014 | 27 | -0.48 | -1.75% | Sep 30, 2014 |
| Q2 2014 | 26.8 | -4.36 | -14% | Jun 30, 2014 |
| Q1 2014 | 27.3 | -5.98 | -18% | Mar 31, 2014 |
| Q4 2013 | 27.7 | -6.52 | -19% | Dec 31, 2013 |
| Q3 2013 | 27.5 | -7.84 | -22.2% | Sep 30, 2013 |
| Q2 2013 | 31.1 | -1.99 | -6.01% | Jun 30, 2013 |
| Q1 2013 | 33.3 | +1.65 | +5.21% | Mar 31, 2013 |
| Q4 2012 | 34.2 | +3 | +9.6% | Dec 31, 2012 |
| Q3 2012 | 35.3 | +3.54 | +11.1% | Sep 30, 2012 |
| Q2 2012 | 33.1 | -0.77 | -2.27% | Jun 30, 2012 |
| Q1 2012 | 31.7 | -3.76 | -10.6% | Mar 31, 2012 |
| Q4 2011 | 31.2 | -4.96 | -13.7% | Dec 31, 2011 |
| Q3 2011 | 31.8 | Sep 30, 2011 | ||
| Q2 2011 | 33.9 | Jun 30, 2011 | ||
| Q1 2011 | 35.4 | Mar 31, 2011 | ||
| Q4 2010 | 36.2 | Dec 31, 2010 |