| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 65.9 | -11.3 | -14.6% | Sep 30, 2024 |
| Q2 2024 | 69 | -7.65 | -9.98% | Jun 30, 2024 |
| Q1 2024 | 71.9 | -4.3 | -5.64% | Mar 31, 2024 |
| Q4 2023 | 75.1 | +1.43 | +1.94% | Dec 31, 2023 |
| Q3 2023 | 77.2 | +5.2 | +7.22% | Sep 30, 2023 |
| Q2 2023 | 76.7 | +6.92 | +9.92% | Jun 30, 2023 |
| Q1 2023 | 76.2 | +6.8 | +9.8% | Mar 31, 2023 |
| Q4 2022 | 73.6 | +3.97 | +5.7% | Dec 31, 2022 |
| Q3 2022 | 72 | +1.01 | +1.42% | Sep 30, 2022 |
| Q2 2022 | 69.8 | -4.15 | -5.61% | Jun 30, 2022 |
| Q1 2022 | 69.4 | -4.95 | -6.66% | Mar 31, 2022 |
| Q4 2021 | 69.7 | -6.01 | -7.94% | Dec 31, 2021 |
| Q3 2021 | 71 | -5.52 | -7.21% | Sep 30, 2021 |
| Q2 2021 | 73.9 | +1.49 | +2.06% | Jun 30, 2021 |
| Q1 2021 | 74.4 | +3.33 | +4.69% | Mar 31, 2021 |
| Q4 2020 | 75.7 | +4.37 | +6.13% | Dec 31, 2020 |
| Q3 2020 | 76.6 | +6.36 | +9.06% | Sep 30, 2020 |
| Q2 2020 | 72.4 | -0.69 | -0.94% | Jun 30, 2020 |
| Q1 2020 | 71 | -3.38 | -4.54% | Mar 31, 2020 |
| Q4 2019 | 71.3 | -1.46 | -2.01% | Dec 31, 2019 |
| Q3 2019 | 70.2 | -2.83 | -3.88% | Sep 30, 2019 |
| Q2 2019 | 73.1 | +6.92 | +10.5% | Jun 30, 2019 |
| Q1 2019 | 74.4 | +13.1 | +21.4% | Mar 31, 2019 |
| Q4 2018 | 72.8 | +15.2 | +26.4% | Dec 31, 2018 |
| Q3 2018 | 73 | +17.9 | +32.5% | Sep 30, 2018 |
| Q2 2018 | 66.2 | +6.59 | +11.1% | Jun 30, 2018 |
| Q1 2018 | 61.3 | -1.45 | -2.31% | Mar 31, 2018 |
| Q4 2017 | 57.6 | -9.55 | -14.2% | Dec 31, 2017 |
| Q3 2017 | 55.1 | -18.3 | -25% | Sep 30, 2017 |
| Q2 2017 | 59.6 | -13.6 | -18.6% | Jun 30, 2017 |
| Q1 2017 | 62.8 | -8.32 | -11.7% | Mar 31, 2017 |
| Q4 2016 | 67.1 | -1.96 | -2.84% | Dec 31, 2016 |
| Q3 2016 | 73.4 | +6.61 | +9.89% | Sep 30, 2016 |
| Q2 2016 | 73.2 | +3.7 | +5.32% | Jun 30, 2016 |
| Q1 2016 | 71.1 | -1.53 | -2.11% | Mar 31, 2016 |
| Q4 2015 | 69.1 | -6.71 | -8.85% | Dec 31, 2015 |
| Q3 2015 | 66.8 | -9.3 | -12.2% | Sep 30, 2015 |
| Q2 2015 | 69.5 | -5.52 | -7.36% | Jun 30, 2015 |
| Q1 2015 | 72.6 | -2.52 | -3.35% | Mar 31, 2015 |
| Q4 2014 | 75.8 | +0.11 | +0.15% | Dec 31, 2014 |
| Q3 2014 | 76.1 | -2.92 | -3.69% | Sep 30, 2014 |
| Q2 2014 | 75 | -6.09 | -7.51% | Jun 30, 2014 |
| Q1 2014 | 75.1 | -6.46 | -7.92% | Mar 31, 2014 |
| Q4 2013 | 75.7 | -4.62 | -5.75% | Dec 31, 2013 |
| Q3 2013 | 79.1 | +0.58 | +0.74% | Sep 30, 2013 |
| Q2 2013 | 81.1 | +3.73 | +4.82% | Jun 30, 2013 |
| Q1 2013 | 81.6 | +6.83 | +9.14% | Mar 31, 2013 |
| Q4 2012 | 80.3 | +8.05 | +11.1% | Dec 31, 2012 |
| Q3 2012 | 78.5 | +9.54 | +13.8% | Sep 30, 2012 |
| Q2 2012 | 77.4 | +13.6 | +21.3% | Jun 30, 2012 |
| Q1 2012 | 74.8 | +14.3 | +23.6% | Mar 31, 2012 |
| Q4 2011 | 72.3 | Dec 31, 2011 | ||
| Q3 2011 | 68.9 | Sep 30, 2011 | ||
| Q2 2011 | 63.8 | Jun 30, 2011 | ||
| Q1 2011 | 60.5 | Mar 31, 2011 |