| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 74.6 | -3.59 | -4.59% | Sep 30, 2024 |
| Q2 2024 | 75.5 | -1.67 | -2.16% | Jun 30, 2024 |
| Q1 2024 | 76.2 | -5.41 | -6.63% | Mar 31, 2024 |
| Q4 2023 | 77.9 | -9.54 | -10.9% | Dec 31, 2023 |
| Q3 2023 | 78.2 | -9.53 | -10.9% | Sep 30, 2023 |
| Q2 2023 | 77.2 | -10.7 | -12.2% | Jun 30, 2023 |
| Q1 2023 | 81.6 | +0.36 | +0.44% | Mar 31, 2023 |
| Q4 2022 | 87.5 | +15.5 | +21.5% | Dec 31, 2022 |
| Q3 2022 | 87.8 | +17 | +24% | Sep 30, 2022 |
| Q2 2022 | 87.9 | +19 | +27.5% | Jun 30, 2022 |
| Q1 2022 | 81.2 | +11.5 | +16.5% | Mar 31, 2022 |
| Q4 2021 | 72 | +0.45 | +0.63% | Dec 31, 2021 |
| Q3 2021 | 70.8 | -3.01 | -4.08% | Sep 30, 2021 |
| Q2 2021 | 69 | -6.88 | -9.07% | Jun 30, 2021 |
| Q1 2021 | 69.7 | -6.43 | -8.45% | Mar 31, 2021 |
| Q4 2020 | 71.5 | -6.79 | -8.67% | Dec 31, 2020 |
| Q3 2020 | 73.8 | -8.83 | -10.7% | Sep 30, 2020 |
| Q2 2020 | 75.8 | -11.3 | -13% | Jun 30, 2020 |
| Q1 2020 | 76.1 | -15.1 | -16.5% | Mar 31, 2020 |
| Q4 2019 | 78.3 | -12.8 | -14.1% | Dec 31, 2019 |
| Q3 2019 | 82.6 | -6.99 | -7.8% | Sep 30, 2019 |
| Q2 2019 | 87.2 | -0.82 | -0.93% | Jun 30, 2019 |
| Q1 2019 | 91.2 | -5.33 | -5.52% | Mar 31, 2019 |
| Q4 2018 | 91.2 | -13.6 | -13% | Dec 31, 2018 |
| Q3 2018 | 89.6 | -19.2 | -17.6% | Sep 30, 2018 |
| Q2 2018 | 88 | -26 | -22.8% | Jun 30, 2018 |
| Q1 2018 | 96.5 | -12.2 | -11.2% | Mar 31, 2018 |
| Q4 2017 | 105 | -1.15 | -1.09% | Dec 31, 2017 |
| Q3 2017 | 109 | +2.43 | +2.29% | Sep 30, 2017 |
| Q2 2017 | 114 | +5.12 | +4.7% | Jun 30, 2017 |
| Q1 2017 | 109 | -2.09 | -1.89% | Mar 31, 2017 |
| Q4 2016 | 106 | -5.45 | -4.89% | Dec 31, 2016 |
| Q3 2016 | 106 | -6.46 | -5.73% | Sep 30, 2016 |
| Q2 2016 | 109 | -0.53 | -0.48% | Jun 30, 2016 |
| Q1 2016 | 111 | +3.44 | +3.2% | Mar 31, 2016 |
| Q4 2015 | 111 | +5.99 | +5.69% | Dec 31, 2015 |
| Q3 2015 | 113 | +6.62 | +6.23% | Sep 30, 2015 |
| Q2 2015 | 109 | +2.22 | +2.07% | Jun 30, 2015 |
| Q1 2015 | 107 | +0.45 | +0.42% | Mar 31, 2015 |
| Q4 2014 | 105 | -1.77 | -1.65% | Dec 31, 2014 |
| Q3 2014 | 106 | +5.37 | +5.33% | Sep 30, 2014 |
| Q2 2014 | 107 | +9.2 | +9.39% | Jun 30, 2014 |
| Q1 2014 | 107 | +13.3 | +14.2% | Mar 31, 2014 |
| Q4 2013 | 107 | +16.7 | +18.5% | Dec 31, 2013 |
| Q3 2013 | 101 | +13.4 | +15.3% | Sep 30, 2013 |
| Q2 2013 | 98 | +17.6 | +21.9% | Jun 30, 2013 |
| Q1 2013 | 93.6 | +18.3 | +24.3% | Mar 31, 2013 |
| Q4 2012 | 90.4 | +20.7 | +29.7% | Dec 31, 2012 |
| Q3 2012 | 87.5 | +21.8 | +33.1% | Sep 30, 2012 |
| Q2 2012 | 80.4 | +18.1 | +29.1% | Jun 30, 2012 |
| Q1 2012 | 75.3 | +14.7 | +24.2% | Mar 31, 2012 |
| Q4 2011 | 69.7 | Dec 31, 2011 | ||
| Q3 2011 | 65.7 | Sep 30, 2011 | ||
| Q2 2011 | 62.3 | Jun 30, 2011 | ||
| Q1 2011 | 60.7 | Mar 31, 2011 |