| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 78.4 | -4.43 | -5.35% | Jun 30, 2024 |
| Q1 2024 | 80.4 | -2.98 | -3.57% | Mar 31, 2024 |
| Q4 2023 | 81.4 | -3.65 | -4.29% | Dec 31, 2023 |
| Q3 2023 | 82.1 | -4.05 | -4.7% | Sep 30, 2023 |
| Q2 2023 | 82.8 | -5.45 | -6.18% | Jun 30, 2023 |
| Q1 2023 | 83.4 | -7.64 | -8.39% | Mar 31, 2023 |
| Q4 2022 | 85 | -8.62 | -9.2% | Dec 31, 2022 |
| Q3 2022 | 86.2 | -11 | -11.3% | Sep 30, 2022 |
| Q2 2022 | 88.2 | -14.3 | -13.9% | Jun 30, 2022 |
| Q1 2022 | 91 | -17.9 | -16.4% | Mar 31, 2022 |
| Q4 2021 | 93.7 | -7.89 | -7.77% | Dec 31, 2021 |
| Q3 2021 | 97.1 | +5.31 | +5.78% | Sep 30, 2021 |
| Q2 2021 | 103 | +19.2 | +23.1% | Jun 30, 2021 |
| Q1 2021 | 109 | +33.3 | +44.1% | Mar 31, 2021 |
| Q4 2020 | 102 | +27.8 | +37.7% | Dec 31, 2020 |
| Q3 2020 | 91.8 | +19.5 | +26.9% | Sep 30, 2020 |
| Q2 2020 | 83.3 | +12.2 | +17.1% | Jun 30, 2020 |
| Q1 2020 | 75.6 | +4.96 | +7.02% | Mar 31, 2020 |
| Q4 2019 | 73.8 | +2.48 | +3.48% | Dec 31, 2019 |
| Q3 2019 | 72.3 | -0.21 | -0.29% | Sep 30, 2019 |
| Q2 2019 | 71.1 | -1.89 | -2.59% | Jun 30, 2019 |
| Q1 2019 | 70.6 | -0.99 | -1.38% | Mar 31, 2019 |
| Q4 2018 | 71.3 | +1.77 | +2.55% | Dec 31, 2018 |
| Q3 2018 | 72.6 | +5.84 | +8.75% | Sep 30, 2018 |
| Q2 2018 | 73 | +10.6 | +16.9% | Jun 30, 2018 |
| Q1 2018 | 71.6 | +12.9 | +22% | Mar 31, 2018 |
| Q4 2017 | 69.5 | +14.2 | +25.6% | Dec 31, 2017 |
| Q3 2017 | 66.7 | +12.7 | +23.5% | Sep 30, 2017 |
| Q2 2017 | 62.4 | +8.73 | +16.3% | Jun 30, 2017 |
| Q1 2017 | 58.7 | -1.54 | -2.56% | Mar 31, 2017 |
| Q4 2016 | 55.4 | -7.64 | -12.1% | Dec 31, 2016 |
| Q3 2016 | 54 | -13.8 | -20.4% | Sep 30, 2016 |
| Q2 2016 | 53.7 | -22.2 | -29.2% | Jun 30, 2016 |
| Q1 2016 | 60.2 | -13 | -17.7% | Mar 31, 2016 |
| Q4 2015 | 63 | -13.1 | -17.2% | Dec 31, 2015 |
| Q3 2015 | 67.9 | -8.05 | -10.6% | Sep 30, 2015 |
| Q2 2015 | 75.9 | +3.1 | +4.26% | Jun 30, 2015 |
| Q1 2015 | 73.2 | -0.17 | -0.23% | Mar 31, 2015 |
| Q4 2014 | 76.1 | +2.63 | +3.58% | Dec 31, 2014 |
| Q3 2014 | 75.9 | -1.76 | -2.27% | Sep 30, 2014 |
| Q2 2014 | 72.8 | -9.8 | -11.9% | Jun 30, 2014 |
| Q1 2014 | 73.4 | -12.5 | -14.5% | Mar 31, 2014 |
| Q4 2013 | 73.4 | -15.9 | -17.8% | Dec 31, 2013 |
| Q3 2013 | 77.7 | -12 | -13.4% | Sep 30, 2013 |
| Q2 2013 | 82.6 | -8.14 | -8.97% | Jun 30, 2013 |
| Q1 2013 | 85.9 | -7.34 | -7.88% | Mar 31, 2013 |
| Q4 2012 | 89.4 | -5.39 | -5.69% | Dec 31, 2012 |
| Q3 2012 | 89.7 | -5.62 | -5.9% | Sep 30, 2012 |
| Q2 2012 | 90.7 | -2.94 | -3.14% | Jun 30, 2012 |
| Q1 2012 | 93.2 | +7.46 | +8.7% | Mar 31, 2012 |
| Q4 2011 | 94.8 | Dec 31, 2011 | ||
| Q3 2011 | 95.3 | Sep 30, 2011 | ||
| Q2 2011 | 93.7 | Jun 30, 2011 | ||
| Q1 2011 | 85.7 | Mar 31, 2011 |