| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2025 | 23.1 | +1.95 | +9.24% | 30 Sep 2025 |
| Q2 2025 | 22.2 | +0.5 | +2.31% | 30 Jun 2025 |
| Q1 2025 | 21.9 | -1.02 | -4.45% | 31 Mar 2025 |
| Q4 2024 | 21.7 | -1.52 | -6.56% | 31 Dec 2024 |
| Q3 2024 | 21.1 | -1.92 | -8.34% | 30 Sep 2024 |
| Q2 2024 | 21.7 | -1.1 | -4.83% | 30 Jun 2024 |
| Q1 2024 | 22.9 | +1.77 | +8.37% | 31 Mar 2024 |
| Q4 2023 | 23.2 | +3.03 | +15% | 31 Dec 2023 |
| Q3 2023 | 23 | +3.56 | +18.3% | 30 Sep 2023 |
| Q2 2023 | 22.8 | +3.44 | +17.8% | 30 Jun 2023 |
| Q1 2023 | 21.1 | +0.37 | +1.78% | 31 Mar 2023 |
| Q4 2022 | 20.1 | -1.29 | -6.02% | 31 Dec 2022 |
| Q3 2022 | 19.5 | -3.29 | -14.5% | 30 Sep 2022 |
| Q2 2022 | 19.4 | -4.71 | -19.6% | 30 Jun 2022 |
| Q1 2022 | 20.8 | -3.57 | -14.7% | 31 Mar 2022 |
| Q4 2021 | 21.4 | -4.56 | -17.5% | 31 Dec 2021 |
| Q3 2021 | 22.8 | -4.24 | -15.7% | 30 Sep 2021 |
| Q2 2021 | 24.1 | -2.61 | -9.79% | 30 Jun 2021 |
| Q1 2021 | 24.3 | -2.3 | -8.63% | 31 Mar 2021 |
| Q4 2020 | 26 | -0.54 | -2.04% | 31 Dec 2020 |
| Q3 2020 | 27 | +0.43 | +1.62% | 30 Sep 2020 |
| Q2 2020 | 26.7 | +0.43 | +1.64% | 30 Jun 2020 |
| Q1 2020 | 26.7 | +0.45 | +1.72% | 31 Mar 2020 |
| Q4 2019 | 26.5 | +1.46 | +5.82% | 31 Dec 2019 |
| Q3 2019 | 26.6 | +3.06 | +13% | 30 Sep 2019 |
| Q2 2019 | 26.2 | +2.88 | +12.3% | 30 Jun 2019 |
| Q1 2019 | 26.2 | +2.3 | +9.62% | 31 Mar 2019 |
| Q4 2018 | 25.1 | +0.19 | +0.76% | 31 Dec 2018 |
| Q3 2018 | 23.5 | -3.12 | -11.7% | 30 Sep 2018 |
| Q2 2018 | 23.4 | -4.89 | -17.3% | 30 Jun 2018 |
| Q1 2018 | 23.9 | -4.96 | -17.2% | 31 Mar 2018 |
| Q4 2017 | 24.9 | -4.94 | -16.6% | 31 Dec 2017 |
| Q3 2017 | 26.6 | -3.53 | -11.7% | 30 Sep 2017 |
| Q2 2017 | 28.3 | -2.8 | -9.02% | 30 Jun 2017 |
| Q1 2017 | 28.9 | -1.62 | -5.31% | 31 Mar 2017 |
| Q4 2016 | 29.8 | -2.18 | -6.81% | 31 Dec 2016 |
| Q3 2016 | 30.2 | -0.64 | -2.08% | 30 Sep 2016 |
| Q2 2016 | 31.1 | +2.11 | +7.29% | 30 Jun 2016 |
| Q1 2016 | 30.5 | -0.62 | -1.99% | 31 Mar 2016 |
| Q4 2015 | 32 | +0.13 | +0.41% | 31 Dec 2015 |
| Q3 2015 | 30.8 | -3.83 | -11.1% | 30 Sep 2015 |
| Q2 2015 | 29 | -10.5 | -26.5% | 30 Jun 2015 |
| Q1 2015 | 31.1 | -8.83 | -22.1% | 31 Mar 2015 |
| Q4 2014 | 31.9 | -6.43 | -16.8% | 31 Dec 2014 |
| Q3 2014 | 34.6 | -4.94 | -12.5% | 30 Sep 2014 |
| Q2 2014 | 39.4 | -0.42 | -1.06% | 30 Jun 2014 |
| Q1 2014 | 39.9 | +0.53 | +1.35% | 31 Mar 2014 |
| Q4 2013 | 38.3 | +2.33 | +6.48% | 31 Dec 2013 |
| Q3 2013 | 39.6 | +8.09 | +25.7% | 30 Sep 2013 |
| Q2 2013 | 39.8 | +14.2 | +55.5% | 30 Jun 2013 |
| Q1 2013 | 39.4 | +19.3 | +95.7% | 31 Mar 2013 |
| Q4 2012 | 36 | 31 Dec 2012 | ||
| Q3 2012 | 31.5 | 30 Sep 2012 | ||
| Q2 2012 | 25.6 | 30 Jun 2012 | ||
| Q1 2012 | 20.1 | 31 Mar 2012 |