| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q4 2024 | 78.9 | -0.01 | -0.01% | Dec 31, 2024 |
| Q3 2024 | 76.8 | -3.89 | -4.82% | Sep 30, 2024 |
| Q2 2024 | 75.5 | -6.42 | -7.84% | Jun 30, 2024 |
| Q1 2024 | 76.8 | -8.32 | -9.77% | Mar 31, 2024 |
| Q4 2023 | 78.9 | -5.82 | -6.87% | Dec 31, 2023 |
| Q3 2023 | 80.7 | -1.34 | -1.63% | Sep 30, 2023 |
| Q2 2023 | 81.9 | +1.99 | +2.49% | Jun 30, 2023 |
| Q1 2023 | 85.1 | +9.69 | +12.8% | Mar 31, 2023 |
| Q4 2022 | 84.8 | +11.4 | +15.6% | Dec 31, 2022 |
| Q3 2022 | 82.1 | +10.5 | +14.6% | Sep 30, 2022 |
| Q2 2022 | 79.9 | +8.04 | +11.2% | Jun 30, 2022 |
| Q1 2022 | 75.4 | +2.96 | +4.08% | Mar 31, 2022 |
| Q4 2021 | 73.3 | +1.29 | +1.79% | Dec 31, 2021 |
| Q3 2021 | 71.6 | -3.62 | -4.81% | Sep 30, 2021 |
| Q2 2021 | 71.9 | -4.34 | -5.69% | Jun 30, 2021 |
| Q1 2021 | 72.5 | -3.46 | -4.56% | Mar 31, 2021 |
| Q4 2020 | 72.1 | -8.12 | -10.1% | Dec 31, 2020 |
| Q3 2020 | 75.2 | -9.45 | -11.2% | Sep 30, 2020 |
| Q2 2020 | 76.2 | -13 | -14.5% | Jun 30, 2020 |
| Q1 2020 | 75.9 | -20.9 | -21.6% | Mar 31, 2020 |
| Q4 2019 | 80.2 | -19.1 | -19.3% | Dec 31, 2019 |
| Q3 2019 | 84.6 | -13.8 | -14% | Sep 30, 2019 |
| Q2 2019 | 89.2 | -8.91 | -9.08% | Jun 30, 2019 |
| Q1 2019 | 96.9 | -0.53 | -0.54% | Mar 31, 2019 |
| Q4 2018 | 99.3 | +0.69 | +0.7% | Dec 31, 2018 |
| Q3 2018 | 98.5 | -4.56 | -4.43% | Sep 30, 2018 |
| Q2 2018 | 98.1 | -8.12 | -7.65% | Jun 30, 2018 |
| Q1 2018 | 97.4 | -14.6 | -13.1% | Mar 31, 2018 |
| Q4 2017 | 98.6 | -17.3 | -14.9% | Dec 31, 2017 |
| Q3 2017 | 103 | -15.1 | -12.7% | Sep 30, 2017 |
| Q2 2017 | 106 | -11 | -9.4% | Jun 30, 2017 |
| Q1 2017 | 112 | -7.53 | -6.3% | Mar 31, 2017 |
| Q4 2016 | 116 | -8.42 | -6.77% | Dec 31, 2016 |
| Q3 2016 | 118 | -8.65 | -6.83% | Sep 30, 2016 |
| Q2 2016 | 117 | -14.7 | -11.2% | Jun 30, 2016 |
| Q1 2016 | 120 | -7.68 | -6.04% | Mar 31, 2016 |
| Q4 2015 | 124 | +6.48 | +5.5% | Dec 31, 2015 |
| Q3 2015 | 127 | +6.43 | +5.35% | Sep 30, 2015 |
| Q2 2015 | 132 | +7.69 | +6.19% | Jun 30, 2015 |
| Q1 2015 | 127 | -1.92 | -1.49% | Mar 31, 2015 |
| Q4 2014 | 118 | -20.3 | -14.7% | Dec 31, 2014 |
| Q3 2014 | 120 | -18.1 | -13.1% | Sep 30, 2014 |
| Q2 2014 | 124 | -12.6 | -9.17% | Jun 30, 2014 |
| Q1 2014 | 129 | -4.32 | -3.24% | Mar 31, 2014 |
| Q4 2013 | 138 | +3.57 | +2.65% | Dec 31, 2013 |
| Q3 2013 | 138 | +5.73 | +4.32% | Sep 30, 2013 |
| Q2 2013 | 137 | +1.33 | +0.98% | Jun 30, 2013 |
| Q1 2013 | 133 | -12.6 | -8.64% | Mar 31, 2013 |
| Q4 2012 | 135 | Dec 31, 2012 | ||
| Q3 2012 | 133 | Sep 30, 2012 | ||
| Q2 2012 | 135 | Jun 30, 2012 | ||
| Q1 2012 | 146 | Mar 31, 2012 |