| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 47.4 | +0.99 | +2.14% | Sep 30, 2024 |
| Q2 2024 | 47.8 | +1.55 | +3.36% | Jun 30, 2024 |
| Q1 2024 | 48 | +1.88 | +4.08% | Mar 31, 2024 |
| Q4 2023 | 47 | +0.82 | +1.78% | Dec 31, 2023 |
| Q3 2023 | 46.4 | +1.18 | +2.61% | Sep 30, 2023 |
| Q2 2023 | 46.2 | +2.31 | +5.26% | Jun 30, 2023 |
| Q1 2023 | 46.1 | +4.17 | +9.94% | Mar 31, 2023 |
| Q4 2022 | 46.2 | +5.03 | +12.2% | Dec 31, 2022 |
| Q3 2022 | 45.2 | +3.79 | +9.15% | Sep 30, 2022 |
| Q2 2022 | 43.9 | +1.13 | +2.64% | Jun 30, 2022 |
| Q1 2022 | 41.9 | -4.39 | -9.48% | Mar 31, 2022 |
| Q4 2021 | 41.2 | -7.96 | -16.2% | Dec 31, 2021 |
| Q3 2021 | 41.4 | -9.26 | -18.3% | Sep 30, 2021 |
| Q2 2021 | 42.8 | -4.8 | -10.1% | Jun 30, 2021 |
| Q1 2021 | 46.3 | +3.13 | +7.25% | Mar 31, 2021 |
| Q4 2020 | 49.1 | +10.4 | +26.7% | Dec 31, 2020 |
| Q3 2020 | 50.7 | +17.4 | +52.2% | Sep 30, 2020 |
| Q2 2020 | 47.6 | +12.6 | +36.2% | Jun 30, 2020 |
| Q1 2020 | 43.2 | +8.9 | +25.9% | Mar 31, 2020 |
| Q4 2019 | 38.8 | +4.98 | +14.7% | Dec 31, 2019 |
| Q3 2019 | 33.3 | +0.4 | +1.22% | Sep 30, 2019 |
| Q2 2019 | 34.9 | +2.71 | +8.41% | Jun 30, 2019 |
| Q1 2019 | 34.3 | +1.41 | +4.29% | Mar 31, 2019 |
| Q4 2018 | 33.8 | +0.38 | +1.14% | Dec 31, 2018 |
| Q3 2018 | 32.9 | -2.38 | -6.75% | Sep 30, 2018 |
| Q2 2018 | 32.2 | -4.8 | -13% | Jun 30, 2018 |
| Q1 2018 | 32.9 | -5.19 | -13.6% | Mar 31, 2018 |
| Q4 2017 | 33.4 | -6.18 | -15.6% | Dec 31, 2017 |
| Q3 2017 | 35.3 | -5.86 | -14.2% | Sep 30, 2017 |
| Q2 2017 | 37 | -4.94 | -11.8% | Jun 30, 2017 |
| Q1 2017 | 38.1 | -4.46 | -10.5% | Mar 31, 2017 |
| Q4 2016 | 39.6 | -3.55 | -8.23% | Dec 31, 2016 |
| Q3 2016 | 41.1 | -1.44 | -3.38% | Sep 30, 2016 |
| Q2 2016 | 42 | +0.7 | +1.7% | Jun 30, 2016 |
| Q1 2016 | 42.6 | +2.41 | +6% | Mar 31, 2016 |
| Q4 2015 | 43.1 | +4.11 | +10.5% | Dec 31, 2015 |
| Q3 2015 | 42.6 | +4.47 | +11.7% | Sep 30, 2015 |
| Q2 2015 | 41.3 | +2.14 | +5.47% | Jun 30, 2015 |
| Q1 2015 | 40.1 | +0.06 | +0.15% | Mar 31, 2015 |
| Q4 2014 | 39 | -2.02 | -4.92% | Dec 31, 2014 |
| Q3 2014 | 38.1 | -3.93 | -9.35% | Sep 30, 2014 |
| Q2 2014 | 39.1 | -5.95 | -13.2% | Jun 30, 2014 |
| Q1 2014 | 40.1 | -8.82 | -18% | Mar 31, 2014 |
| Q4 2013 | 41 | -3.16 | -7.15% | Dec 31, 2013 |
| Q3 2013 | 42 | -7.57 | -15.3% | Sep 30, 2013 |
| Q2 2013 | 45.1 | -4.74 | -9.52% | Jun 30, 2013 |
| Q1 2013 | 48.9 | +0.37 | +0.76% | Mar 31, 2013 |
| Q4 2012 | 44.2 | -22.3 | -33.5% | Dec 31, 2012 |
| Q3 2012 | 49.6 | -13.3 | -21.2% | Sep 30, 2012 |
| Q2 2012 | 49.8 | -11.5 | -18.8% | Jun 30, 2012 |
| Q1 2012 | 48.5 | -5.95 | -10.9% | Mar 31, 2012 |
| Q4 2011 | 66.5 | Dec 31, 2011 | ||
| Q3 2011 | 62.9 | Sep 30, 2011 | ||
| Q2 2011 | 61.3 | Jun 30, 2011 | ||
| Q1 2011 | 54.5 | Mar 31, 2011 |