| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2025 | 20 | -2.17 | -9.8% | 30 Sep 2025 |
| Q2 2025 | 20 | -3.34 | -14.3% | 30 Jun 2025 |
| Q1 2025 | 20.9 | -2.75 | -11.7% | 31 Mar 2025 |
| Q4 2024 | 21.5 | -2.22 | -9.38% | 31 Dec 2024 |
| Q3 2024 | 22.1 | -1.97 | -8.17% | 30 Sep 2024 |
| Q2 2024 | 23.3 | -0.69 | -2.88% | 30 Jun 2024 |
| Q1 2024 | 23.6 | -1.17 | -4.72% | 31 Mar 2024 |
| Q4 2023 | 23.7 | -1.55 | -6.15% | 31 Dec 2023 |
| Q3 2023 | 24.1 | -1.57 | -6.11% | 30 Sep 2023 |
| Q2 2023 | 24 | -1.72 | -6.69% | 30 Jun 2023 |
| Q1 2023 | 24.8 | -1.09 | -4.22% | 31 Mar 2023 |
| Q4 2022 | 25.2 | -0.68 | -2.63% | 31 Dec 2022 |
| Q3 2022 | 25.7 | +0.3 | +1.18% | 30 Sep 2022 |
| Q2 2022 | 25.7 | +0.86 | +3.46% | 30 Jun 2022 |
| Q1 2022 | 25.9 | +1.55 | +6.38% | 31 Mar 2022 |
| Q4 2021 | 25.9 | +1.84 | +7.65% | 31 Dec 2021 |
| Q3 2021 | 25.4 | +1.14 | +4.7% | 30 Sep 2021 |
| Q2 2021 | 24.9 | +0.56 | +2.31% | 30 Jun 2021 |
| Q1 2021 | 24.3 | -0.02 | -0.08% | 31 Mar 2021 |
| Q4 2020 | 24.1 | -0.11 | -0.46% | 31 Dec 2020 |
| Q3 2020 | 24.2 | +1.32 | +5.76% | 30 Sep 2020 |
| Q2 2020 | 24.3 | +2.6 | +12% | 30 Jun 2020 |
| Q1 2020 | 24.3 | +3.73 | +18.1% | 31 Mar 2020 |
| Q4 2019 | 24.2 | +4.93 | +25.6% | 31 Dec 2019 |
| Q3 2019 | 22.9 | +4.49 | +24.4% | 30 Sep 2019 |
| Q2 2019 | 21.7 | +3.22 | +17.4% | 30 Jun 2019 |
| Q1 2019 | 20.6 | +2.05 | +11.1% | 31 Mar 2019 |
| Q4 2018 | 19.2 | +0.15 | +0.79% | 31 Dec 2018 |
| Q3 2018 | 18.4 | -0.96 | -4.95% | 30 Sep 2018 |
| Q2 2018 | 18.5 | -1.04 | -5.33% | 30 Jun 2018 |
| Q1 2018 | 18.6 | -1.4 | -7.02% | 31 Mar 2018 |
| Q4 2017 | 19.1 | -1.04 | -5.17% | 31 Dec 2017 |
| Q3 2017 | 19.4 | -0.3 | -1.52% | 30 Sep 2017 |
| Q2 2017 | 19.5 | +0.21 | +1.09% | 30 Jun 2017 |
| Q1 2017 | 19.9 | +1.54 | +8.37% | 31 Mar 2017 |
| Q4 2016 | 20.1 | +2.31 | +13% | 31 Dec 2016 |
| Q3 2016 | 19.7 | +1.4 | +7.66% | 30 Sep 2016 |
| Q2 2016 | 19.3 | +1.27 | +7.04% | 30 Jun 2016 |
| Q1 2016 | 18.4 | +0.79 | +4.49% | 31 Mar 2016 |
| Q4 2015 | 17.8 | +0.81 | +4.76% | 31 Dec 2015 |
| Q3 2015 | 18.3 | +2.04 | +12.6% | 30 Sep 2015 |
| Q2 2015 | 18 | +0.85 | +4.94% | 30 Jun 2015 |
| Q1 2015 | 17.6 | -0.56 | -3.08% | 31 Mar 2015 |
| Q4 2014 | 17 | -1.96 | -10.3% | 31 Dec 2014 |
| Q3 2014 | 16.2 | -3.6 | -18.1% | 30 Sep 2014 |
| Q2 2014 | 17.2 | -1.65 | -8.76% | 30 Jun 2014 |
| Q1 2014 | 18.2 | -2.09 | -10.3% | 31 Mar 2014 |
| Q4 2013 | 19 | -3.39 | -15.2% | 31 Dec 2013 |
| Q3 2013 | 19.8 | -5.85 | -22.8% | 30 Sep 2013 |
| Q2 2013 | 18.9 | -14 | -42.6% | 30 Jun 2013 |
| Q1 2013 | 20.3 | -13.3 | -39.7% | 31 Mar 2013 |
| Q4 2012 | 22.4 | 31 Dec 2012 | ||
| Q3 2012 | 25.7 | 30 Sep 2012 | ||
| Q2 2012 | 32.9 | 30 Jun 2012 | ||
| Q1 2012 | 33.6 | 31 Mar 2012 |