| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 74.9 | +4.17 | +5.9% | Sep 30, 2024 |
| Q2 2024 | 73.5 | +3.7 | +5.3% | Jun 30, 2024 |
| Q1 2024 | 74.9 | +7.2 | +10.6% | Mar 31, 2024 |
| Q4 2023 | 71.7 | +6.25 | +9.56% | Dec 31, 2023 |
| Q3 2023 | 70.7 | +4.17 | +6.26% | Sep 30, 2023 |
| Q2 2023 | 69.8 | +4.71 | +7.23% | Jun 30, 2023 |
| Q1 2023 | 67.8 | +4.13 | +6.49% | Mar 31, 2023 |
| Q4 2022 | 65.4 | +0.96 | +1.49% | Dec 31, 2022 |
| Q3 2022 | 66.6 | +4.57 | +7.37% | Sep 30, 2022 |
| Q2 2022 | 65.1 | +1.35 | +2.12% | Jun 30, 2022 |
| Q1 2022 | 63.6 | -3.55 | -5.29% | Mar 31, 2022 |
| Q4 2021 | 64.5 | -4.55 | -6.59% | Dec 31, 2021 |
| Q3 2021 | 62 | -11.5 | -15.6% | Sep 30, 2021 |
| Q2 2021 | 63.8 | -10 | -13.6% | Jun 30, 2021 |
| Q1 2021 | 67.2 | -3.92 | -5.51% | Mar 31, 2021 |
| Q4 2020 | 69 | -1.23 | -1.75% | Dec 31, 2020 |
| Q3 2020 | 73.5 | +4.39 | +6.36% | Sep 30, 2020 |
| Q2 2020 | 73.8 | +4.54 | +6.55% | Jun 30, 2020 |
| Q1 2020 | 71.1 | -3.44 | -4.62% | Mar 31, 2020 |
| Q4 2019 | 70.2 | -7.34 | -9.46% | Dec 31, 2019 |
| Q3 2019 | 69.1 | -9.53 | -12.1% | Sep 30, 2019 |
| Q2 2019 | 69.3 | -11.6 | -14.3% | Jun 30, 2019 |
| Q1 2019 | 74.5 | -8.05 | -9.75% | Mar 31, 2019 |
| Q4 2018 | 77.6 | -6.54 | -7.78% | Dec 31, 2018 |
| Q3 2018 | 78.6 | -4.86 | -5.82% | Sep 30, 2018 |
| Q2 2018 | 80.8 | -2 | -2.41% | Jun 30, 2018 |
| Q1 2018 | 82.6 | +2.24 | +2.79% | Mar 31, 2018 |
| Q4 2017 | 84.1 | +5.19 | +6.58% | Dec 31, 2017 |
| Q3 2017 | 83.5 | +4.72 | +5.99% | Sep 30, 2017 |
| Q2 2017 | 82.8 | +5.13 | +6.6% | Jun 30, 2017 |
| Q1 2017 | 80.3 | +1.9 | +2.42% | Mar 31, 2017 |
| Q4 2016 | 78.9 | +0.6 | +0.77% | Dec 31, 2016 |
| Q3 2016 | 78.8 | +2.25 | +2.94% | Sep 30, 2016 |
| Q2 2016 | 77.7 | +6.6 | +9.28% | Jun 30, 2016 |
| Q1 2016 | 78.4 | +8.41 | +12% | Mar 31, 2016 |
| Q4 2015 | 78.3 | +7.61 | +10.8% | Dec 31, 2015 |
| Q3 2015 | 76.5 | +10.5 | +16% | Sep 30, 2015 |
| Q2 2015 | 71.1 | +1.42 | +2.04% | Jun 30, 2015 |
| Q1 2015 | 70 | -0.37 | -0.53% | Mar 31, 2015 |
| Q4 2014 | 70.7 | +1.03 | +1.48% | Dec 31, 2014 |
| Q3 2014 | 66 | -8.72 | -11.7% | Sep 30, 2014 |
| Q2 2014 | 69.7 | -6.38 | -8.39% | Jun 30, 2014 |
| Q1 2014 | 70.4 | -6.6 | -8.57% | Mar 31, 2014 |
| Q4 2013 | 69.7 | -10.1 | -12.7% | Dec 31, 2013 |
| Q3 2013 | 74.7 | -9.33 | -11.1% | Sep 30, 2013 |
| Q2 2013 | 76.1 | -11.2 | -12.9% | Jun 30, 2013 |
| Q1 2013 | 77 | -9.84 | -11.3% | Mar 31, 2013 |
| Q4 2012 | 79.8 | -4.08 | -4.86% | Dec 31, 2012 |
| Q3 2012 | 84 | +5.14 | +6.52% | Sep 30, 2012 |
| Q2 2012 | 87.3 | +9.41 | +12.1% | Jun 30, 2012 |
| Q1 2012 | 86.8 | +9.1 | +11.7% | Mar 31, 2012 |
| Q4 2011 | 83.9 | +4.57 | +5.76% | Dec 31, 2011 |
| Q3 2011 | 78.9 | Sep 30, 2011 | ||
| Q2 2011 | 77.9 | Jun 30, 2011 | ||
| Q1 2011 | 77.7 | Mar 31, 2011 | ||
| Q4 2010 | 79.3 | Dec 31, 2010 |