| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 84.8 | +3.76 | +4.64% | May 31, 2024 |
| Q1 2024 | 83.1 | +0.06 | +0.07% | Feb 29, 2024 |
| Q4 2023 | 81.7 | -2.63 | -3.12% | Nov 30, 2023 |
| Q3 2023 | 80.8 | -5.03 | -5.86% | Aug 31, 2023 |
| Q2 2023 | 81.1 | -5.72 | -6.59% | May 31, 2023 |
| Q1 2023 | 83 | -2.93 | -3.41% | Feb 28, 2023 |
| Q4 2022 | 84.3 | -1.74 | -2.02% | Nov 30, 2022 |
| Q3 2022 | 85.8 | -1.08 | -1.24% | Aug 31, 2022 |
| Q2 2022 | 86.8 | -3.19 | -3.55% | May 31, 2022 |
| Q1 2022 | 85.9 | -6.82 | -7.35% | Feb 28, 2022 |
| Q4 2021 | 86.1 | -5.98 | -6.5% | Nov 30, 2021 |
| Q3 2021 | 86.9 | -3.37 | -3.73% | Aug 31, 2021 |
| Q2 2021 | 90 | +8.79 | +10.8% | May 31, 2021 |
| Q1 2021 | 92.8 | +19 | +25.8% | Feb 28, 2021 |
| Q4 2020 | 92 | +23.4 | +34.2% | Nov 30, 2020 |
| Q3 2020 | 90.3 | +26.8 | +42.2% | Aug 31, 2020 |
| Q2 2020 | 81.2 | +18.2 | +28.9% | May 31, 2020 |
| Q1 2020 | 73.7 | +9.73 | +15.2% | Feb 29, 2020 |
| Q4 2019 | 68.6 | +4.53 | +7.07% | Nov 30, 2019 |
| Q3 2019 | 63.5 | -0.62 | -0.97% | Aug 31, 2019 |
| Q2 2019 | 63 | -2.58 | -3.94% | May 31, 2019 |
| Q1 2019 | 64 | -1.51 | -2.31% | Feb 28, 2019 |
| Q4 2018 | 64.1 | -3.7 | -5.46% | Nov 30, 2018 |
| Q3 2018 | 64.1 | -4.59 | -6.68% | Aug 31, 2018 |
| Q2 2018 | 65.6 | -4.58 | -6.53% | May 31, 2018 |
| Q1 2018 | 65.5 | -6.08 | -8.5% | Feb 28, 2018 |
| Q4 2017 | 67.8 | -3.69 | -5.16% | Nov 30, 2017 |
| Q3 2017 | 68.7 | -4.35 | -5.96% | Aug 31, 2017 |
| Q2 2017 | 70.1 | -3.68 | -4.99% | May 31, 2017 |
| Q1 2017 | 71.6 | -3.61 | -4.8% | Feb 28, 2017 |
| Q4 2016 | 71.5 | -5.27 | -6.87% | Nov 30, 2016 |
| Q3 2016 | 73 | -5.64 | -7.17% | Aug 31, 2016 |
| Q2 2016 | 73.8 | -3.96 | -5.09% | May 31, 2016 |
| Q1 2016 | 75.2 | -1.3 | -1.7% | Feb 29, 2016 |
| Q4 2015 | 76.7 | +2.78 | +3.76% | Nov 30, 2015 |
| Q3 2015 | 78.7 | +7.58 | +10.7% | Aug 31, 2015 |
| Q2 2015 | 77.8 | +6.52 | +9.15% | May 31, 2015 |
| Q1 2015 | 76.5 | +5.38 | +7.57% | Feb 28, 2015 |
| Q4 2014 | 74 | +0.05 | +0.07% | Nov 30, 2014 |
| Q3 2014 | 71.1 | -5.31 | -6.95% | Aug 31, 2014 |
| Q2 2014 | 71.3 | -6.27 | -8.09% | May 31, 2014 |
| Q1 2014 | 71.1 | -8.57 | -10.8% | Feb 28, 2014 |
| Q4 2013 | 73.9 | -6.77 | -8.39% | Nov 30, 2013 |
| Q3 2013 | 76.4 | -2.86 | -3.61% | Aug 31, 2013 |
| Q2 2013 | 77.5 | -2.14 | -2.69% | May 31, 2013 |
| Q1 2013 | 79.7 | +1.41 | +1.8% | Feb 28, 2013 |
| Q4 2012 | 80.7 | Nov 30, 2012 | ||
| Q3 2012 | 79.3 | Aug 31, 2012 | ||
| Q2 2012 | 79.7 | May 31, 2012 | ||
| Q1 2012 | 78.3 | Feb 29, 2012 |