| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 71.8 | -7.32 | -9.25% | Sep 30, 2024 |
| Q2 2024 | 75.1 | -4.31 | -5.43% | Jun 30, 2024 |
| Q1 2024 | 77.4 | +1.18 | +1.55% | Mar 31, 2024 |
| Q4 2023 | 78.4 | +5.96 | +8.23% | Dec 31, 2023 |
| Q3 2023 | 79.1 | +8.35 | +11.8% | Sep 30, 2023 |
| Q2 2023 | 79.4 | +10.3 | +14.9% | Jun 30, 2023 |
| Q1 2023 | 76.2 | +7.7 | +11.2% | Mar 31, 2023 |
| Q4 2022 | 72.4 | +2.76 | +3.96% | Dec 31, 2022 |
| Q3 2022 | 70.8 | +1.71 | +2.48% | Sep 30, 2022 |
| Q2 2022 | 69.1 | -0.71 | -1.02% | Jun 30, 2022 |
| Q1 2022 | 68.5 | -2.56 | -3.6% | Mar 31, 2022 |
| Q4 2021 | 69.6 | +0.54 | +0.78% | Dec 31, 2021 |
| Q3 2021 | 69.1 | -0.16 | -0.23% | Sep 30, 2021 |
| Q2 2021 | 69.8 | +1.13 | +1.65% | Jun 30, 2021 |
| Q1 2021 | 71.1 | +3.31 | +4.88% | Mar 31, 2021 |
| Q4 2020 | 69.1 | -1.62 | -2.29% | Dec 31, 2020 |
| Q3 2020 | 69.2 | -0.84 | -1.2% | Sep 30, 2020 |
| Q2 2020 | 68.7 | -0.68 | -0.98% | Jun 30, 2020 |
| Q1 2020 | 67.8 | -1.1 | -1.6% | Mar 31, 2020 |
| Q4 2019 | 70.7 | +2.33 | +3.41% | Dec 31, 2019 |
| Q3 2019 | 70.1 | +1.99 | +2.92% | Sep 30, 2019 |
| Q2 2019 | 69.4 | +0.56 | +0.81% | Jun 30, 2019 |
| Q1 2019 | 68.9 | -0.39 | -0.56% | Mar 31, 2019 |
| Q4 2018 | 68.4 | -0.29 | -0.42% | Dec 31, 2018 |
| Q3 2018 | 68.1 | -0.79 | -1.15% | Sep 30, 2018 |
| Q2 2018 | 68.8 | +7.82 | +12.8% | Jun 30, 2018 |
| Q1 2018 | 69.3 | +12.6 | +22.2% | Mar 31, 2018 |
| Q4 2017 | 68.7 | +10.8 | +18.7% | Dec 31, 2017 |
| Q3 2017 | 68.9 | +9.38 | +15.8% | Sep 30, 2017 |
| Q2 2017 | 61 | -5.14 | -7.77% | Jun 30, 2017 |
| Q1 2017 | 56.7 | -14.7 | -20.6% | Mar 31, 2017 |
| Q4 2016 | 57.9 | -7.81 | -11.9% | Dec 31, 2016 |
| Q3 2016 | 59.5 | -5.45 | -8.39% | Sep 30, 2016 |
| Q2 2016 | 66.1 | +3.94 | +6.34% | Jun 30, 2016 |
| Q1 2016 | 71.4 | +6.85 | +10.6% | Mar 31, 2016 |
| Q4 2015 | 65.7 | -6.23 | -8.66% | Dec 31, 2015 |
| Q3 2015 | 64.9 | -8.77 | -11.9% | Sep 30, 2015 |
| Q2 2015 | 62.2 | -16.9 | -21.4% | Jun 30, 2015 |
| Q1 2015 | 64.5 | -15.1 | -18.9% | Mar 31, 2015 |
| Q4 2014 | 71.9 | -7.27 | -9.18% | Dec 31, 2014 |
| Q3 2014 | 73.7 | -7.02 | -8.7% | Sep 30, 2014 |
| Q2 2014 | 79.1 | -2.24 | -2.75% | Jun 30, 2014 |
| Q1 2014 | 79.6 | -3.23 | -3.9% | Mar 31, 2014 |
| Q4 2013 | 79.2 | -5.19 | -6.15% | Dec 31, 2013 |
| Q3 2013 | 80.7 | -2.72 | -3.26% | Sep 30, 2013 |
| Q2 2013 | 81.4 | -1.21 | -1.47% | Jun 30, 2013 |
| Q1 2013 | 82.8 | +2.36 | +2.93% | Mar 31, 2013 |
| Q4 2012 | 84.4 | +7.08 | +9.16% | Dec 31, 2012 |
| Q3 2012 | 83.4 | +4.93 | +6.28% | Sep 30, 2012 |
| Q2 2012 | 82.6 | +2.17 | +2.7% | Jun 30, 2012 |
| Q1 2012 | 80.5 | -0.99 | -1.22% | Mar 31, 2012 |
| Q4 2011 | 77.3 | Dec 31, 2011 | ||
| Q3 2011 | 78.5 | Sep 30, 2011 | ||
| Q2 2011 | 80.4 | Jun 30, 2011 | ||
| Q1 2011 | 81.5 | Mar 31, 2011 |