| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 85.8 | +6.19 | +7.77% | Sep 30, 2024 |
| Q2 2024 | 83.2 | +3.17 | +3.96% | Jun 30, 2024 |
| Q1 2024 | 81.1 | +1.59 | +2% | Mar 31, 2024 |
| Q4 2023 | 80 | +1.14 | +1.45% | Dec 31, 2023 |
| Q3 2023 | 79.6 | +0.42 | +0.53% | Sep 30, 2023 |
| Q2 2023 | 80 | +2.12 | +2.72% | Jun 30, 2023 |
| Q1 2023 | 79.5 | +1.58 | +2.03% | Mar 31, 2023 |
| Q4 2022 | 78.8 | +2.1 | +2.74% | Dec 31, 2022 |
| Q3 2022 | 79.2 | +3.61 | +4.78% | Sep 30, 2022 |
| Q2 2022 | 77.9 | +1.28 | +1.67% | Jun 30, 2022 |
| Q1 2022 | 77.9 | -0.48 | -0.61% | Mar 31, 2022 |
| Q4 2021 | 76.7 | -1.96 | -2.49% | Dec 31, 2021 |
| Q3 2021 | 75.6 | -2.12 | -2.73% | Sep 30, 2021 |
| Q2 2021 | 76.6 | +1.91 | +2.56% | Jun 30, 2021 |
| Q1 2021 | 78.4 | +7.91 | +11.2% | Mar 31, 2021 |
| Q4 2020 | 78.7 | +9.09 | +13.1% | Dec 31, 2020 |
| Q3 2020 | 77.7 | +7.25 | +10.3% | Sep 30, 2020 |
| Q2 2020 | 74.7 | +4.41 | +6.27% | Jun 30, 2020 |
| Q1 2020 | 70.5 | -1.9 | -2.63% | Mar 31, 2020 |
| Q4 2019 | 69.6 | -2.44 | -3.39% | Dec 31, 2019 |
| Q3 2019 | 70.5 | -1.75 | -2.42% | Sep 30, 2019 |
| Q2 2019 | 70.3 | -2.3 | -3.17% | Jun 30, 2019 |
| Q1 2019 | 72.4 | +0.56 | +0.78% | Mar 31, 2019 |
| Q4 2018 | 72.1 | +0.27 | +0.38% | Dec 31, 2018 |
| Q3 2018 | 72.2 | +1.48 | +2.09% | Sep 30, 2018 |
| Q2 2018 | 72.6 | +1.97 | +2.79% | Jun 30, 2018 |
| Q1 2018 | 71.8 | +1.71 | +2.44% | Mar 31, 2018 |
| Q4 2017 | 71.8 | +1.33 | +1.89% | Dec 31, 2017 |
| Q3 2017 | 70.7 | -0.92 | -1.28% | Sep 30, 2017 |
| Q2 2017 | 70.6 | -2.23 | -3.06% | Jun 30, 2017 |
| Q1 2017 | 70.1 | -4.41 | -5.92% | Mar 31, 2017 |
| Q4 2016 | 70.5 | -5.02 | -6.65% | Dec 31, 2016 |
| Q3 2016 | 71.7 | -4.67 | -6.12% | Sep 30, 2016 |
| Q2 2016 | 72.9 | -3.27 | -4.3% | Jun 30, 2016 |
| Q1 2016 | 74.5 | -0.87 | -1.15% | Mar 31, 2016 |
| Q4 2015 | 75.5 | +1.05 | +1.41% | Dec 31, 2015 |
| Q3 2015 | 76.3 | +2.83 | +3.85% | Sep 30, 2015 |
| Q2 2015 | 76.1 | +2.11 | +2.85% | Jun 30, 2015 |
| Q1 2015 | 75.4 | +0.49 | +0.65% | Mar 31, 2015 |
| Q4 2014 | 74.4 | -3.23 | -4.16% | Dec 31, 2014 |
| Q3 2014 | 73.5 | -5.33 | -6.76% | Sep 30, 2014 |
| Q2 2014 | 74 | -6.23 | -7.76% | Jun 30, 2014 |
| Q1 2014 | 74.9 | -6.4 | -7.87% | Mar 31, 2014 |
| Q4 2013 | 77.7 | -3.42 | -4.22% | Dec 31, 2013 |
| Q3 2013 | 78.8 | -4.07 | -4.91% | Sep 30, 2013 |
| Q2 2013 | 80.3 | -3.62 | -4.32% | Jun 30, 2013 |
| Q1 2013 | 81.3 | -2.97 | -3.52% | Mar 31, 2013 |
| Q4 2012 | 81.1 | -2.82 | -3.36% | Dec 31, 2012 |
| Q3 2012 | 82.9 | +0.75 | +0.91% | Sep 30, 2012 |
| Q2 2012 | 83.9 | +4.64 | +5.86% | Jun 30, 2012 |
| Q1 2012 | 84.3 | +5.51 | +6.99% | Mar 31, 2012 |
| Q4 2011 | 83.9 | +5.32 | +6.77% | Dec 31, 2011 |
| Q3 2011 | 82.2 | Sep 30, 2011 | ||
| Q2 2011 | 79.2 | Jun 30, 2011 | ||
| Q1 2011 | 78.8 | Mar 31, 2011 | ||
| Q4 2010 | 78.6 | Dec 31, 2010 |