| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 61.5 | +0.31 | +0.51% | May 31, 2024 |
| Q1 2024 | 62 | +1.27 | +2.09% | Feb 29, 2024 |
| Q4 2023 | 61.2 | +0.98 | +1.63% | Nov 30, 2023 |
| Q3 2023 | 60.2 | -1.21 | -1.97% | Aug 31, 2023 |
| Q2 2023 | 61.2 | -0.77 | -1.24% | May 31, 2023 |
| Q1 2023 | 60.7 | +1.01 | +1.69% | Feb 28, 2023 |
| Q4 2022 | 60.2 | +1.05 | +1.77% | Nov 30, 2022 |
| Q3 2022 | 61.4 | +2.2 | +3.72% | Aug 31, 2022 |
| Q2 2022 | 62 | +0.36 | +0.58% | May 31, 2022 |
| Q1 2022 | 59.7 | -4.42 | -6.89% | Feb 28, 2022 |
| Q4 2021 | 59.2 | -4.33 | -6.82% | Nov 30, 2021 |
| Q3 2021 | 59.2 | -0.16 | -0.27% | Aug 31, 2021 |
| Q2 2021 | 61.6 | +17.4 | +39.4% | May 31, 2021 |
| Q1 2021 | 64.1 | +15.1 | +30.8% | Feb 28, 2021 |
| Q4 2020 | 63.5 | +13.4 | +26.7% | Nov 30, 2020 |
| Q3 2020 | 59.4 | +10.3 | +21% | Aug 31, 2020 |
| Q2 2020 | 44.2 | -2.22 | -4.78% | May 31, 2020 |
| Q1 2020 | 49 | +5.11 | +11.6% | Feb 29, 2020 |
| Q4 2019 | 50.1 | +5.74 | +12.9% | Nov 30, 2019 |
| Q3 2019 | 49 | +5.09 | +11.6% | Aug 31, 2019 |
| Q2 2019 | 46.4 | -2.21 | -4.55% | May 31, 2019 |
| Q1 2019 | 43.9 | -3.04 | -6.48% | Feb 28, 2019 |
| Q4 2018 | 44.4 | -0.59 | -1.31% | Nov 30, 2018 |
| Q3 2018 | 44 | -3.14 | -6.67% | Aug 31, 2018 |
| Q2 2018 | 48.6 | -3.62 | -6.93% | May 31, 2018 |
| Q1 2018 | 47 | -7.52 | -13.8% | Feb 28, 2018 |
| Q4 2017 | 45 | -12.8 | -22.2% | Nov 30, 2017 |
| Q3 2017 | 47.1 | -12 | -20.3% | Aug 31, 2017 |
| Q2 2017 | 52.2 | -8.53 | -14% | May 31, 2017 |
| Q1 2017 | 54.5 | -8.73 | -13.8% | Feb 28, 2017 |
| Q4 2016 | 57.8 | -6.27 | -9.78% | Nov 30, 2016 |
| Q3 2016 | 59.1 | -6.48 | -9.89% | Aug 31, 2016 |
| Q2 2016 | 60.8 | -2.6 | -4.1% | May 31, 2016 |
| Q1 2016 | 63.2 | +1.94 | +3.17% | Feb 29, 2016 |
| Q4 2015 | 64.1 | +6.15 | +10.6% | Nov 30, 2015 |
| Q3 2015 | 65.5 | +11.8 | +22% | Aug 31, 2015 |
| Q2 2015 | 63.4 | +12.3 | +24% | May 31, 2015 |
| Q1 2015 | 61.3 | +13 | +27% | Feb 28, 2015 |
| Q4 2014 | 58 | +4.36 | +8.14% | Nov 30, 2014 |
| Q3 2014 | 53.7 | -7.38 | -12.1% | Aug 31, 2014 |
| Q2 2014 | 51.1 | -15.9 | -23.8% | May 31, 2014 |
| Q1 2014 | 48.2 | -23.2 | -32.5% | Feb 28, 2014 |
| Q4 2013 | 53.6 | -16.3 | -23.3% | Nov 30, 2013 |
| Q3 2013 | 61.1 | -7.9 | -11.5% | Aug 31, 2013 |
| Q2 2013 | 67 | -2.25 | -3.25% | May 31, 2013 |
| Q1 2013 | 71.4 | +3.66 | +5.4% | Feb 28, 2013 |
| Q4 2012 | 69.9 | +4.64 | +7.11% | Nov 30, 2012 |
| Q3 2012 | 69 | +9.89 | +16.7% | Aug 31, 2012 |
| Q2 2012 | 69.3 | +15.3 | +28.3% | May 31, 2012 |
| Q1 2012 | 67.8 | Feb 29, 2012 | ||
| Q4 2011 | 65.3 | Nov 30, 2011 | ||
| Q3 2011 | 59.1 | Aug 31, 2011 | ||
| Q2 2011 | 54 | May 31, 2011 |