| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2025 | 27 | -2 | -7.8% | 30 Sep 2025 |
| Q2 2025 | 27 | -4 | -12.5% | 30 Jun 2025 |
| Q1 2025 | 27 | -5 | -14.9% | 31 Mar 2025 |
| Q4 2024 | 27 | -8 | -21.8% | 31 Dec 2024 |
| Q3 2024 | 29 | -6 | -16% | 30 Sep 2024 |
| Q2 2024 | 31 | -4 | -10.2% | 30 Jun 2024 |
| Q1 2024 | 32 | -3 | -8.3% | 31 Mar 2024 |
| Q4 2023 | 35 | +1 | +2.8% | 31 Dec 2023 |
| Q3 2023 | 35 | +1 | +2.5% | 30 Sep 2023 |
| Q2 2023 | 35 | -0 | -0.34% | 30 Jun 2023 |
| Q1 2023 | 35 | +1 | +2.9% | 31 Mar 2023 |
| Q4 2022 | 34 | -1 | -1.8% | 31 Dec 2022 |
| Q3 2022 | 34 | 0 | 0% | 30 Sep 2022 |
| Q2 2022 | 35 | -0 | -0.11% | 30 Jun 2022 |
| Q1 2022 | 34 | -1 | -3.7% | 31 Mar 2022 |
| Q4 2021 | 35 | -0 | -1.2% | 31 Dec 2021 |
| Q3 2021 | 34 | -0 | -1.3% | 30 Sep 2021 |
| Q2 2021 | 35 | +1 | +3.5% | 30 Jun 2021 |
| Q1 2021 | 36 | +3 | +8% | 31 Mar 2021 |
| Q4 2020 | 35 | +2 | +7.2% | 31 Dec 2020 |
| Q3 2020 | 35 | +2 | +5.7% | 30 Sep 2020 |
| Q2 2020 | 34 | +1 | +2.4% | 30 Jun 2020 |
| Q1 2020 | 33 | -0 | -1.1% | 31 Mar 2020 |
| Q4 2019 | 33 | -1 | -1.9% | 31 Dec 2019 |
| Q3 2019 | 33 | +1 | +3.7% | 30 Sep 2019 |
| Q2 2019 | 33 | +2 | +6.1% | 30 Jun 2019 |
| Q1 2019 | 33 | +3 | +8.5% | 31 Mar 2019 |
| Q4 2018 | 33 | +3 | +11.5% | 31 Dec 2018 |
| Q3 2018 | 32 | +2 | +6.8% | 30 Sep 2018 |
| Q2 2018 | 31 | +2 | +6.4% | 30 Jun 2018 |
| Q1 2018 | 31 | +3 | +10.1% | 31 Mar 2018 |
| Q4 2017 | 30 | +2 | +8.7% | 31 Dec 2017 |
| Q3 2017 | 30 | +1 | +4.5% | 30 Sep 2017 |
| Q2 2017 | 29 | -0 | -1.2% | 30 Jun 2017 |
| Q1 2017 | 28 | -2 | -7.3% | 31 Mar 2017 |
| Q4 2016 | 27 | -3 | -10.2% | 31 Dec 2016 |
| Q3 2016 | 28 | -3 | -10.7% | 30 Sep 2016 |
| Q2 2016 | 29 | -4 | -12.3% | 30 Jun 2016 |
| Q1 2016 | 30 | -7 | -18.7% | 31 Mar 2016 |
| Q4 2015 | 31 | -9 | -22.2% | 31 Dec 2015 |
| Q3 2015 | 32 | -9 | -22.6% | 30 Sep 2015 |
| Q2 2015 | 34 | -9 | -20% | 30 Jun 2015 |
| Q1 2015 | 37 | -5 | -12.1% | 31 Mar 2015 |
| Q4 2014 | 39 | -3 | -6.1% | 31 Dec 2014 |
| Q3 2014 | 41 | -1 | -2.3% | 30 Sep 2014 |
| Q2 2014 | 42 | -2 | -4.1% | 30 Jun 2014 |
| Q1 2014 | 42 | -5 | -9.7% | 31 Mar 2014 |
| Q4 2013 | 42 | -3 | -7% | 31 Dec 2013 |
| Q3 2013 | 42 | -1 | -3% | 30 Sep 2013 |
| Q2 2013 | 44 | +3 | +6.9% | 30 Jun 2013 |
| Q1 2013 | 47 | +7 | +18.3% | 31 Mar 2013 |
| Q4 2012 | 45 | +4 | +9.9% | 31 Dec 2012 |
| Q3 2012 | 44 | +1 | +2.5% | 30 Sep 2012 |
| Q2 2012 | 41 | -2 | -3.7% | 30 Jun 2012 |
| Q1 2012 | 39 | -2 | -4.3% | 31 Mar 2012 |
| Q4 2011 | 41 | +2 | +5.4% | 31 Dec 2011 |
| Q3 2011 | 42 | 30 Sep 2011 | ||
| Q2 2011 | 43 | 30 Jun 2011 | ||
| Q1 2011 | 41 | 31 Mar 2011 | ||
| Q4 2010 | 39 | 31 Dec 2010 |