| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 39.9 | +2.95 | +7.98% | Mar 31, 2024 |
| Q4 2023 | 36.7 | -0.12 | -0.33% | Dec 31, 2023 |
| Q3 2023 | 36.7 | -0.29 | -0.78% | Sep 30, 2023 |
| Q2 2023 | 37 | -0.27 | -0.72% | Jun 30, 2023 |
| Q1 2023 | 37 | -1.08 | -2.84% | Mar 31, 2023 |
| Q4 2022 | 36.8 | -2.48 | -6.31% | Dec 31, 2022 |
| Q3 2022 | 37 | -4.51 | -10.9% | Sep 30, 2022 |
| Q2 2022 | 37.3 | -3.9 | -9.47% | Jun 30, 2022 |
| Q1 2022 | 38 | -2.55 | -6.28% | Mar 31, 2022 |
| Q4 2021 | 39.3 | -1.07 | -2.65% | Dec 31, 2021 |
| Q3 2021 | 41.5 | +2.26 | +5.76% | Sep 30, 2021 |
| Q2 2021 | 41.2 | +0.99 | +2.46% | Jun 30, 2021 |
| Q1 2021 | 40.6 | -0.1 | -0.25% | Mar 31, 2021 |
| Q4 2020 | 40.4 | -0.45 | -1.1% | Dec 31, 2020 |
| Q3 2020 | 39.2 | -3.22 | -7.59% | Sep 30, 2020 |
| Q2 2020 | 40.2 | -4.13 | -9.32% | Jun 30, 2020 |
| Q1 2020 | 40.7 | -6.77 | -14.3% | Mar 31, 2020 |
| Q4 2019 | 40.8 | -9.19 | -18.4% | Dec 31, 2019 |
| Q3 2019 | 42.5 | -9.75 | -18.7% | Sep 30, 2019 |
| Q2 2019 | 44.3 | -10.1 | -18.6% | Jun 30, 2019 |
| Q1 2019 | 47.5 | -9.01 | -16% | Mar 31, 2019 |
| Q4 2018 | 50 | -8.44 | -14.4% | Dec 31, 2018 |
| Q3 2018 | 52.2 | -7.25 | -12.2% | Sep 30, 2018 |
| Q2 2018 | 54.5 | -5.07 | -8.52% | Jun 30, 2018 |
| Q1 2018 | 56.5 | -4.72 | -7.71% | Mar 31, 2018 |
| Q4 2017 | 58.5 | -5.39 | -8.44% | Dec 31, 2017 |
| Q3 2017 | 59.5 | -6.9 | -10.4% | Sep 30, 2017 |
| Q2 2017 | 59.5 | -6.17 | -9.39% | Jun 30, 2017 |
| Q1 2017 | 61.2 | -0.18 | -0.29% | Mar 31, 2017 |
| Q4 2016 | 63.9 | +9.83 | +18.2% | Dec 31, 2016 |
| Q3 2016 | 66.4 | +12 | +22% | Sep 30, 2016 |
| Q2 2016 | 65.7 | +11.2 | +20.5% | Jun 30, 2016 |
| Q1 2016 | 61.4 | -6.33 | -9.35% | Mar 31, 2016 |
| Q4 2015 | 54 | -25 | -31.7% | Dec 31, 2015 |
| Q3 2015 | 54.4 | -24.4 | -30.9% | Sep 30, 2015 |
| Q2 2015 | 54.5 | -24.7 | -31.1% | Jun 30, 2015 |
| Q1 2015 | 67.7 | Mar 31, 2015 | ||
| Q4 2014 | 79.1 | Dec 31, 2014 | ||
| Q3 2014 | 78.8 | Sep 30, 2014 | ||
| Q2 2014 | 79.2 | Jun 30, 2014 |