| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 63.5 | -8.98 | -12.4% | Sep 30, 2024 |
| Q2 2024 | 66.4 | -5.08 | -7.11% | Jun 30, 2024 |
| Q1 2024 | 67.7 | -3.14 | -4.43% | Mar 31, 2024 |
| Q4 2023 | 70.7 | +0.09 | +0.13% | Dec 31, 2023 |
| Q3 2023 | 72.5 | +3.33 | +4.82% | Sep 30, 2023 |
| Q2 2023 | 71.5 | +2.81 | +4.09% | Jun 30, 2023 |
| Q1 2023 | 70.8 | +4.11 | +6.16% | Mar 31, 2023 |
| Q4 2022 | 70.7 | +9.04 | +14.7% | Dec 31, 2022 |
| Q3 2022 | 69.1 | +9.06 | +15.1% | Sep 30, 2022 |
| Q2 2022 | 68.7 | +7.81 | +12.8% | Jun 30, 2022 |
| Q1 2022 | 66.7 | +4.85 | +7.84% | Mar 31, 2022 |
| Q4 2021 | 61.6 | -5.14 | -7.7% | Dec 31, 2021 |
| Q3 2021 | 60.1 | -11.9 | -16.5% | Sep 30, 2021 |
| Q2 2021 | 60.9 | -11.8 | -16.3% | Jun 30, 2021 |
| Q1 2021 | 61.9 | -12.6 | -17% | Mar 31, 2021 |
| Q4 2020 | 66.8 | -9.56 | -12.5% | Dec 31, 2020 |
| Q3 2020 | 72 | -5 | -6.5% | Sep 30, 2020 |
| Q2 2020 | 72.7 | -3.01 | -3.98% | Jun 30, 2020 |
| Q1 2020 | 74.5 | -1.96 | -2.56% | Mar 31, 2020 |
| Q4 2019 | 76.3 | -0.49 | -0.64% | Dec 31, 2019 |
| Q3 2019 | 77 | -2.36 | -2.98% | Sep 30, 2019 |
| Q2 2019 | 75.7 | -6.99 | -8.46% | Jun 30, 2019 |
| Q1 2019 | 76.5 | +0.56 | +0.74% | Mar 31, 2019 |
| Q4 2018 | 76.8 | -1.65 | -2.1% | Dec 31, 2018 |
| Q3 2018 | 79.3 | +1.24 | +1.59% | Sep 30, 2018 |
| Q2 2018 | 82.7 | +2.8 | +3.51% | Jun 30, 2018 |
| Q1 2018 | 75.9 | -17.7 | -18.9% | Mar 31, 2018 |
| Q4 2017 | 78.5 | -16.1 | -17% | Dec 31, 2017 |
| Q3 2017 | 78.1 | -16.2 | -17.2% | Sep 30, 2017 |
| Q2 2017 | 79.9 | -14.6 | -15.5% | Jun 30, 2017 |
| Q1 2017 | 93.6 | -1.93 | -2.02% | Mar 31, 2017 |
| Q4 2016 | 94.5 | +0.14 | +0.15% | Dec 31, 2016 |
| Q3 2016 | 94.3 | -0.07 | -0.07% | Sep 30, 2016 |
| Q2 2016 | 94.5 | +2.75 | +3% | Jun 30, 2016 |
| Q1 2016 | 95.5 | +5.53 | +6.14% | Mar 31, 2016 |
| Q4 2015 | 94.4 | +5.87 | +6.63% | Dec 31, 2015 |
| Q3 2015 | 94.4 | +7.3 | +8.38% | Sep 30, 2015 |
| Q2 2015 | 91.7 | +5.09 | +5.88% | Jun 30, 2015 |
| Q1 2015 | 90 | +5.21 | +6.14% | Mar 31, 2015 |
| Q4 2014 | 88.5 | +6.14 | +7.45% | Dec 31, 2014 |
| Q3 2014 | 87.1 | +6.23 | +7.71% | Sep 30, 2014 |
| Q2 2014 | 86.6 | +8.63 | +11.1% | Jun 30, 2014 |
| Q1 2014 | 84.8 | +9.54 | +12.7% | Mar 31, 2014 |
| Q4 2013 | 82.4 | +9.56 | +13.1% | Dec 31, 2013 |
| Q3 2013 | 80.9 | +10.9 | +15.6% | Sep 30, 2013 |
| Q2 2013 | 78 | +10.6 | +15.7% | Jun 30, 2013 |
| Q1 2013 | 75.3 | +9.51 | +14.5% | Mar 31, 2013 |
| Q4 2012 | 72.8 | +8.67 | +13.5% | Dec 31, 2012 |
| Q3 2012 | 70 | +5.28 | +8.16% | Sep 30, 2012 |
| Q2 2012 | 67.4 | +2.9 | +4.5% | Jun 30, 2012 |
| Q1 2012 | 65.7 | +2.49 | +3.94% | Mar 31, 2012 |
| Q4 2011 | 64.2 | Dec 31, 2011 | ||
| Q3 2011 | 64.7 | Sep 30, 2011 | ||
| Q2 2011 | 64.5 | Jun 30, 2011 | ||
| Q1 2011 | 63.3 | Mar 31, 2011 |