| Period | Value | YoY Chg | Change % | Start Date | End Date |
|---|---|---|---|---|---|
| Q1 2024 | 60.4 | -2.4 | -3.82% | Mar 31, 2024 | |
| Q4 2023 | 59.8 | -5.39 | -8.26% | Dec 31, 2023 | |
| Q3 2023 | 59.6 | -8.14 | -12% | Sep 30, 2023 | |
| Q2 2023 | 60.6 | -10.4 | -14.6% | Jun 30, 2023 | |
| Q1 2023 | 62.8 | -11.8 | -15.8% | Mar 31, 2023 | |
| Q4 2022 | 65.2 | -12.6 | -16.2% | Dec 31, 2022 | |
| Q3 2022 | 67.8 | -12.6 | -15.6% | Sep 30, 2022 | |
| Q2 2022 | 71 | -7.63 | -9.7% | Jun 30, 2022 | |
| Q1 2022 | 74.6 | -0.13 | -0.17% | Mar 31, 2022 | |
| Q4 2021 | 77.9 | +7.89 | +11.3% | Dec 31, 2021 | |
| Q3 2021 | 80.3 | +14.6 | +22.3% | Sep 30, 2021 | |
| Q2 2021 | 78.7 | +14.2 | +22% | Jun 30, 2021 | |
| Q1 2021 | 74.8 | +11.1 | +17.5% | Mar 31, 2021 | |
| Q4 2020 | 70 | +6.03 | +9.43% | Dec 31, 2020 | |
| Q3 2020 | 65.7 | +1.86 | +2.91% | Sep 30, 2020 | |
| Q2 2020 | 64.5 | +0.02 | +0.03% | Jun 30, 2020 | |
| Q1 2020 | 63.6 | -2.24 | -3.4% | Mar 31, 2020 | |
| Q4 2019 | 63.9 | -3.13 | -4.67% | Dec 31, 2019 | |
| Q3 2019 | 63.8 | -4.98 | -7.24% | Sep 30, 2019 | |
| Q2 2019 | 64.4 | -6.06 | -8.6% | Jun 30, 2019 | |
| Q1 2019 | 65.9 | -5.79 | -8.08% | Mar 31, 2019 | |
| Q4 2018 | 67.1 | -6.15 | -8.4% | Dec 31, 2018 | |
| Q3 2018 | 68.8 | -6.24 | -8.31% | Sep 30, 2018 | |
| Q2 2018 | 70.5 | -5.34 | -7.04% | Jun 30, 2018 | |
| Q1 2018 | 71.7 | -5.07 | -6.61% | Mar 31, 2018 | |
| Q4 2017 | 73.2 | -3.21 | -4.2% | Dec 31, 2017 | |
| Q3 2017 | 75.1 | 0 | 0% | Sep 30, 2017 | |
| Q2 2017 | 75.8 | +1.69 | +2.28% | Jun 30, 2017 | |
| Q1 2017 | 76.7 | +3.91 | +5.37% | Mar 31, 2017 | |
| Q4 2016 | 76.4 | +4.22 | +5.84% | Dec 31, 2016 | |
| Q3 2016 | 75.1 | +3.25 | +4.53% | Sep 30, 2016 | |
| Q2 2016 | 74.2 | +3.19 | +4.5% | Jun 30, 2016 | |
| Q1 2016 | 72.8 | +2.26 | +3.2% | Mar 31, 2016 | |
| Q4 2015 | 72.2 | +2.06 | +2.94% | Dec 31, 2015 | |
| Q3 2015 | 71.8 | +2.05 | +2.94% | Sep 30, 2015 | |
| Q2 2015 | 71 | +0.94 | +1.34% | Jun 30, 2015 | |
| Q1 2015 | 70.6 | +0.52 | +0.74% | Mar 31, 2015 | |
| Q4 2014 | 70.2 | +0.65 | +0.94% | Dec 31, 2014 | |
| Q3 2014 | 69.8 | +0.16 | +0.23% | Sep 30, 2014 | |
| Q2 2014 | 70 | +0.58 | +0.84% | Jun 30, 2014 | |
| Q1 2014 | 70 | +1.13 | +1.64% | Mar 31, 2014 | |
| Q4 2013 | 69.5 | +0.07 | +0.1% | Dec 31, 2013 | |
| Q3 2013 | 69.6 | -0.35 | -0.5% | Sep 30, 2013 | |
| Q2 2013 | 69.4 | -0.15 | -0.22% | Jun 30, 2013 | |
| Q1 2013 | 68.9 | -2.16 | -3.04% | Mar 31, 2013 | |
| Q4 2012 | 69.4 | -2.99 | -4.13% | Dec 31, 2012 | |
| Q3 2012 | 69.9 | -3.23 | -4.41% | Sep 30, 2012 | |
| Q2 2012 | 69.6 | -4.85 | -6.52% | Jun 30, 2012 | |
| Q1 2012 | 71.1 | -2.92 | -3.95% | Mar 31, 2012 | |
| Q4 2011 | 72.4 | -1.56 | -2.11% | Dec 31, 2011 | |
| Q3 2011 | 73.2 | Sep 30, 2011 | |||
| Q2 2011 | 74.4 | Jun 30, 2011 | |||
| Q1 2011 | 74 | Mar 31, 2011 | |||
| Q4 2010 | 74 | Dec 31, 2010 |