| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 85.8 | -1.06 | -1.22% | Sep 30, 2024 |
| Q2 2024 | 86 | -0.22 | -0.26% | Jun 30, 2024 |
| Q1 2024 | 86.3 | +0.69 | +0.81% | Mar 31, 2024 |
| Q4 2023 | 87.2 | -1.01 | -1.15% | Dec 31, 2023 |
| Q3 2023 | 86.8 | -2.08 | -2.34% | Sep 30, 2023 |
| Q2 2023 | 86.2 | -5.28 | -5.77% | Jun 30, 2023 |
| Q1 2023 | 85.6 | -9.83 | -10.3% | Mar 31, 2023 |
| Q4 2022 | 88.2 | -8.75 | -9.03% | Dec 31, 2022 |
| Q3 2022 | 88.9 | -12.9 | -12.6% | Sep 30, 2022 |
| Q2 2022 | 91.5 | -13.3 | -12.7% | Jun 30, 2022 |
| Q1 2022 | 95.4 | -11 | -10.4% | Mar 31, 2022 |
| Q4 2021 | 96.9 | -3.93 | -3.9% | Dec 31, 2021 |
| Q3 2021 | 102 | +6.68 | +7.02% | Sep 30, 2021 |
| Q2 2021 | 105 | +15.7 | +17.6% | Jun 30, 2021 |
| Q1 2021 | 106 | +23.2 | +27.9% | Mar 31, 2021 |
| Q4 2020 | 101 | +21.2 | +26.7% | Dec 31, 2020 |
| Q3 2020 | 95.1 | +15.6 | +19.6% | Sep 30, 2020 |
| Q2 2020 | 89.2 | +10.1 | +12.8% | Jun 30, 2020 |
| Q1 2020 | 83.3 | +5.04 | +6.44% | Mar 31, 2020 |
| Q4 2019 | 79.6 | -0.42 | -0.53% | Dec 31, 2019 |
| Q3 2019 | 79.5 | +1.31 | +1.68% | Sep 30, 2019 |
| Q2 2019 | 79 | +1.76 | +2.28% | Jun 30, 2019 |
| Q1 2019 | 78.2 | -1.73 | -2.16% | Mar 31, 2019 |
| Q4 2018 | 80 | -3.94 | -4.69% | Dec 31, 2018 |
| Q3 2018 | 78.2 | -10.4 | -11.7% | Sep 30, 2018 |
| Q2 2018 | 77.3 | -16.1 | -17.3% | Jun 30, 2018 |
| Q1 2018 | 80 | -13.1 | -14.1% | Mar 31, 2018 |
| Q4 2017 | 84 | -13.2 | -13.5% | Dec 31, 2017 |
| Q3 2017 | 88.6 | -11.9 | -11.9% | Sep 30, 2017 |
| Q2 2017 | 93.4 | -10.5 | -10.1% | Jun 30, 2017 |
| Q1 2017 | 93.1 | -15.5 | -14.3% | Mar 31, 2017 |
| Q4 2016 | 97.1 | -10.5 | -9.77% | Dec 31, 2016 |
| Q3 2016 | 101 | -7.32 | -6.79% | Sep 30, 2016 |
| Q2 2016 | 104 | -5.57 | -5.09% | Jun 30, 2016 |
| Q1 2016 | 109 | -2.89 | -2.59% | Mar 31, 2016 |
| Q4 2015 | 108 | -4.08 | -3.65% | Dec 31, 2015 |
| Q3 2015 | 108 | -2.72 | -2.46% | Sep 30, 2015 |
| Q2 2015 | 109 | -0.57 | -0.52% | Jun 30, 2015 |
| Q1 2015 | 111 | +3.51 | +3.25% | Mar 31, 2015 |
| Q4 2014 | 112 | +4.4 | +4.1% | Dec 31, 2014 |
| Q3 2014 | 111 | +2.55 | +2.36% | Sep 30, 2014 |
| Q2 2014 | 110 | +3.18 | +2.98% | Jun 30, 2014 |
| Q1 2014 | 108 | -0.21 | -0.19% | Mar 31, 2014 |
| Q4 2013 | 107 | -4.23 | -3.79% | Dec 31, 2013 |
| Q3 2013 | 108 | -13 | -10.7% | Sep 30, 2013 |
| Q2 2013 | 107 | -25.8 | -19.4% | Jun 30, 2013 |
| Q1 2013 | 108 | -38 | -26% | Mar 31, 2013 |
| Q4 2012 | 112 | -47.6 | -29.9% | Dec 31, 2012 |
| Q3 2012 | 121 | -42.1 | -25.8% | Sep 30, 2012 |
| Q2 2012 | 133 | -35.2 | -21% | Jun 30, 2012 |
| Q1 2012 | 146 | -26.4 | -15.3% | Mar 31, 2012 |
| Q4 2011 | 159 | Dec 31, 2011 | ||
| Q3 2011 | 163 | Sep 30, 2011 | ||
| Q2 2011 | 168 | Jun 30, 2011 | ||
| Q1 2011 | 172 | Mar 31, 2011 |