| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 37.4 | +1.15 | +3.17% | Mar 31, 2024 |
| Q4 2023 | 36.4 | -0.67 | -1.81% | Dec 31, 2023 |
| Q3 2023 | 36.2 | -1.42 | -3.77% | Sep 30, 2023 |
| Q2 2023 | 36 | -0.08 | -0.22% | Jun 30, 2023 |
| Q1 2023 | 36.3 | +1.41 | +4.04% | Mar 31, 2023 |
| Q4 2022 | 37.1 | +3.1 | +9.13% | Dec 31, 2022 |
| Q3 2022 | 37.7 | +5.45 | +16.9% | Sep 30, 2022 |
| Q2 2022 | 36 | +5.49 | +18% | Jun 30, 2022 |
| Q1 2022 | 34.9 | +5.67 | +19.4% | Mar 31, 2022 |
| Q4 2021 | 34 | +6.87 | +25.4% | Dec 31, 2021 |
| Q3 2021 | 32.2 | +5.94 | +22.6% | Sep 30, 2021 |
| Q2 2021 | 30.5 | +4.73 | +18.3% | Jun 30, 2021 |
| Q1 2021 | 29.2 | +3.4 | +13.2% | Mar 31, 2021 |
| Q4 2020 | 27.1 | +0.51 | +1.92% | Dec 31, 2020 |
| Q3 2020 | 26.3 | -0.43 | -1.61% | Sep 30, 2020 |
| Q2 2020 | 25.8 | -1.53 | -5.6% | Jun 30, 2020 |
| Q1 2020 | 25.8 | -2.55 | -9% | Mar 31, 2020 |
| Q4 2019 | 26.6 | -2.61 | -8.94% | Dec 31, 2019 |
| Q3 2019 | 26.7 | -2.12 | -7.36% | Sep 30, 2019 |
| Q2 2019 | 27.3 | -1.6 | -5.53% | Jun 30, 2019 |
| Q1 2019 | 28.4 | +0.51 | +1.83% | Mar 31, 2019 |
| Q4 2018 | 29.2 | +1.74 | +6.34% | Dec 31, 2018 |
| Q3 2018 | 28.8 | +1.7 | +6.27% | Sep 30, 2018 |
| Q2 2018 | 29 | +2.42 | +9.13% | Jun 30, 2018 |
| Q1 2018 | 27.8 | +1.37 | +5.18% | Mar 31, 2018 |
| Q4 2017 | 27.4 | +1.88 | +7.36% | Dec 31, 2017 |
| Q3 2017 | 27.1 | +1.17 | +4.51% | Sep 30, 2017 |
| Q2 2017 | 26.5 | -1.72 | -6.09% | Jun 30, 2017 |
| Q1 2017 | 26.5 | -3.54 | -11.8% | Mar 31, 2017 |
| Q4 2016 | 25.6 | -6.69 | -20.7% | Dec 31, 2016 |
| Q3 2016 | 25.9 | -7.26 | -21.9% | Sep 30, 2016 |
| Q2 2016 | 28.2 | -6.26 | -18.1% | Jun 30, 2016 |
| Q1 2016 | 30 | -6.16 | -17% | Mar 31, 2016 |
| Q4 2015 | 32.3 | -5.28 | -14.1% | Dec 31, 2015 |
| Q3 2015 | 33.2 | -7.7 | -18.8% | Sep 30, 2015 |
| Q2 2015 | 34.5 | -7.01 | -16.9% | Jun 30, 2015 |
| Q1 2015 | 36.2 | -6.22 | -14.7% | Mar 31, 2015 |
| Q4 2014 | 37.5 | -6.86 | -15.5% | Dec 31, 2014 |
| Q3 2014 | 40.9 | -3.05 | -6.94% | Sep 30, 2014 |
| Q2 2014 | 41.5 | -0.16 | -0.38% | Jun 30, 2014 |
| Q1 2014 | 42.4 | +1.25 | +3.04% | Mar 31, 2014 |
| Q4 2013 | 44.4 | +2.89 | +6.96% | Dec 31, 2013 |
| Q3 2013 | 44 | +1.06 | +2.47% | Sep 30, 2013 |
| Q2 2013 | 41.7 | -8.59 | -17.1% | Jun 30, 2013 |
| Q1 2013 | 41.2 | -15.7 | -27.6% | Mar 31, 2013 |
| Q4 2012 | 41.5 | Dec 31, 2012 | ||
| Q3 2012 | 42.9 | Sep 30, 2012 | ||
| Q2 2012 | 50.3 | Jun 30, 2012 | ||
| Q1 2012 | 56.8 | Mar 31, 2012 |