| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 82.4 | -4.88 | -5.59% | Sep 30, 2024 |
| Q2 2024 | 84.8 | -2.67 | -3.05% | Jun 30, 2024 |
| Q1 2024 | 87 | -1.33 | -1.51% | Mar 31, 2024 |
| Q4 2023 | 87.4 | -1.66 | -1.86% | Dec 31, 2023 |
| Q3 2023 | 87.2 | -1.61 | -1.81% | Sep 30, 2023 |
| Q2 2023 | 87.5 | +2.35 | +2.76% | Jun 30, 2023 |
| Q1 2023 | 88.4 | +8.29 | +10.4% | Mar 31, 2023 |
| Q4 2022 | 89.1 | +15.3 | +20.7% | Dec 31, 2022 |
| Q3 2022 | 88.8 | +19 | +27.2% | Sep 30, 2022 |
| Q2 2022 | 85.1 | +16.8 | +24.5% | Jun 30, 2022 |
| Q1 2022 | 80.1 | +10.2 | +14.5% | Mar 31, 2022 |
| Q4 2021 | 73.8 | +0.15 | +0.2% | Dec 31, 2021 |
| Q3 2021 | 69.8 | -7.99 | -10.3% | Sep 30, 2021 |
| Q2 2021 | 68.4 | -10.6 | -13.4% | Jun 30, 2021 |
| Q1 2021 | 69.9 | -7 | -9.1% | Mar 31, 2021 |
| Q4 2020 | 73.6 | -1.16 | -1.55% | Dec 31, 2020 |
| Q3 2020 | 77.8 | +3.71 | +5.01% | Sep 30, 2020 |
| Q2 2020 | 78.9 | +4.26 | +5.71% | Jun 30, 2020 |
| Q1 2020 | 76.9 | +1.35 | +1.79% | Mar 31, 2020 |
| Q4 2019 | 74.8 | -2.92 | -3.76% | Dec 31, 2019 |
| Q3 2019 | 74.1 | -4.1 | -5.24% | Sep 30, 2019 |
| Q2 2019 | 74.7 | -4.03 | -5.12% | Jun 30, 2019 |
| Q1 2019 | 75.6 | -3.34 | -4.23% | Mar 31, 2019 |
| Q4 2018 | 77.7 | -0.44 | -0.56% | Dec 31, 2018 |
| Q3 2018 | 78.2 | -0.34 | -0.43% | Sep 30, 2018 |
| Q2 2018 | 78.7 | -0.11 | -0.14% | Jun 30, 2018 |
| Q1 2018 | 78.9 | -0.44 | -0.55% | Mar 31, 2018 |
| Q4 2017 | 78.2 | +0.27 | +0.35% | Dec 31, 2017 |
| Q3 2017 | 78.6 | +2.07 | +2.71% | Sep 30, 2017 |
| Q2 2017 | 78.8 | +3.73 | +4.97% | Jun 30, 2017 |
| Q1 2017 | 79.4 | +5.58 | +7.56% | Mar 31, 2017 |
| Q4 2016 | 77.9 | +1.3 | +1.7% | Dec 31, 2016 |
| Q3 2016 | 76.5 | -3.52 | -4.4% | Sep 30, 2016 |
| Q2 2016 | 75.1 | -10.4 | -12.2% | Jun 30, 2016 |
| Q1 2016 | 73.8 | -14.5 | -16.4% | Mar 31, 2016 |
| Q4 2015 | 76.6 | -11.5 | -13% | Dec 31, 2015 |
| Q3 2015 | 80 | -5.66 | -6.61% | Sep 30, 2015 |
| Q2 2015 | 85.5 | +3.92 | +4.81% | Jun 30, 2015 |
| Q1 2015 | 88.3 | +10.2 | +13% | Mar 31, 2015 |
| Q4 2014 | 88.1 | +12.5 | +16.5% | Dec 31, 2014 |
| Q3 2014 | 85.7 | +10.6 | +14.1% | Sep 30, 2014 |
| Q2 2014 | 81.6 | +3.59 | +4.61% | Jun 30, 2014 |
| Q1 2014 | 78.1 | -3.87 | -4.72% | Mar 31, 2014 |
| Q4 2013 | 75.6 | -7.56 | -9.09% | Dec 31, 2013 |
| Q3 2013 | 75.1 | -8.83 | -10.5% | Sep 30, 2013 |
| Q2 2013 | 78 | -3.61 | -4.43% | Jun 30, 2013 |
| Q1 2013 | 82 | +3.71 | +4.74% | Mar 31, 2013 |
| Q4 2012 | 83.2 | +6.78 | +8.88% | Dec 31, 2012 |
| Q3 2012 | 83.9 | +8.84 | +11.8% | Sep 30, 2012 |
| Q2 2012 | 81.6 | +7.49 | +10.1% | Jun 30, 2012 |
| Q1 2012 | 78.3 | +5.61 | +7.72% | Mar 31, 2012 |
| Q4 2011 | 76.4 | Dec 31, 2011 | ||
| Q3 2011 | 75.1 | Sep 30, 2011 | ||
| Q2 2011 | 74.1 | Jun 30, 2011 | ||
| Q1 2011 | 72.7 | Mar 31, 2011 |