| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 75.5 | +1.4 | +1.89% | Mar 31, 2024 |
| Q4 2023 | 75.9 | +3.19 | +4.39% | Dec 31, 2023 |
| Q3 2023 | 75.5 | +3.2 | +4.43% | Sep 30, 2023 |
| Q2 2023 | 75.1 | +4.03 | +5.67% | Jun 30, 2023 |
| Q1 2023 | 74.1 | +4.49 | +6.45% | Mar 31, 2023 |
| Q4 2022 | 72.7 | +2.85 | +4.08% | Dec 31, 2022 |
| Q3 2022 | 72.3 | +2.4 | +3.43% | Sep 30, 2022 |
| Q2 2022 | 71.1 | -1.19 | -1.65% | Jun 30, 2022 |
| Q1 2022 | 69.6 | -4.23 | -5.73% | Mar 31, 2022 |
| Q4 2021 | 69.8 | -6.76 | -8.83% | Dec 31, 2021 |
| Q3 2021 | 69.9 | -7.9 | -10.2% | Sep 30, 2021 |
| Q2 2021 | 72.3 | -4.91 | -6.36% | Jun 30, 2021 |
| Q1 2021 | 73.9 | -4.2 | -5.38% | Mar 31, 2021 |
| Q4 2020 | 76.6 | -0.19 | -0.25% | Dec 31, 2020 |
| Q3 2020 | 77.8 | +0.63 | +0.82% | Sep 30, 2020 |
| Q2 2020 | 77.2 | -0.69 | -0.89% | Jun 30, 2020 |
| Q1 2020 | 78.1 | -0.44 | -0.56% | Mar 31, 2020 |
| Q4 2019 | 76.8 | -2 | -2.54% | Dec 31, 2019 |
| Q3 2019 | 77.2 | -1.28 | -1.63% | Sep 30, 2019 |
| Q2 2019 | 77.9 | -1.11 | -1.41% | Jun 30, 2019 |
| Q1 2019 | 78.5 | -0.98 | -1.23% | Mar 31, 2019 |
| Q4 2018 | 78.8 | -1.59 | -1.98% | Dec 31, 2018 |
| Q3 2018 | 78.5 | -2.35 | -2.91% | Sep 30, 2018 |
| Q2 2018 | 79 | -1.38 | -1.72% | Jun 30, 2018 |
| Q1 2018 | 79.5 | -1.25 | -1.55% | Mar 31, 2018 |
| Q4 2017 | 80.4 | +0.03 | +0.04% | Dec 31, 2017 |
| Q3 2017 | 80.8 | +0.44 | +0.55% | Sep 30, 2017 |
| Q2 2017 | 80.4 | 0 | 0% | Jun 30, 2017 |
| Q1 2017 | 80.7 | +1.62 | +2.05% | Mar 31, 2017 |
| Q4 2016 | 80.3 | +2.04 | +2.61% | Dec 31, 2016 |
| Q3 2016 | 80.4 | +2.84 | +3.66% | Sep 30, 2016 |
| Q2 2016 | 80.4 | +3.76 | +4.91% | Jun 30, 2016 |
| Q1 2016 | 79.1 | +3.31 | +4.37% | Mar 31, 2016 |
| Q4 2015 | 78.3 | +3.02 | +4.01% | Dec 31, 2015 |
| Q3 2015 | 77.6 | +3.38 | +4.56% | Sep 30, 2015 |
| Q2 2015 | 76.6 | +2.41 | +3.25% | Jun 30, 2015 |
| Q1 2015 | 75.8 | +1.41 | +1.9% | Mar 31, 2015 |
| Q4 2014 | 75.3 | +1.12 | +1.51% | Dec 31, 2014 |
| Q3 2014 | 74.2 | +0.31 | +0.42% | Sep 30, 2014 |
| Q2 2014 | 74.2 | +0.9 | +1.23% | Jun 30, 2014 |
| Q1 2014 | 74.4 | +1.5 | +2.06% | Mar 31, 2014 |
| Q4 2013 | 74.2 | +1.01 | +1.38% | Dec 31, 2013 |
| Q3 2013 | 73.9 | +1 | +1.37% | Sep 30, 2013 |
| Q2 2013 | 73.3 | +0.48 | +0.66% | Jun 30, 2013 |
| Q1 2013 | 72.9 | -0.46 | -0.63% | Mar 31, 2013 |
| Q4 2012 | 73.1 | -0.88 | -1.19% | Dec 31, 2012 |
| Q3 2012 | 72.9 | -1.43 | -1.93% | Sep 30, 2012 |
| Q2 2012 | 72.9 | -2.58 | -3.42% | Jun 30, 2012 |
| Q1 2012 | 73.4 | -2.52 | -3.32% | Mar 31, 2012 |
| Q4 2011 | 74 | Dec 31, 2011 | ||
| Q3 2011 | 74.3 | Sep 30, 2011 | ||
| Q2 2011 | 75.4 | Jun 30, 2011 | ||
| Q1 2011 | 75.9 | Mar 31, 2011 |