| Period | Value | YoY Chg | Change % | Start Date | End Date |
|---|---|---|---|---|---|
| Q3 2025 | 6.32 | +4.51 | +249% | Jun 1, 2025 | Aug 31, 2025 |
| Q2 2025 | 5.75 | +1.5 | +35.3% | Mar 1, 2025 | May 31, 2025 |
| Q1 2025 | 3.65 | -5.13 | -58.5% | Dec 1, 2024 | Feb 28, 2025 |
| Q4 2024 | 2.57 | -5.78 | -69.2% | Sep 1, 2024 | Nov 30, 2024 |
| Q3 2024 | 1.81 | -6.43 | -78.1% | Jun 1, 2024 | Aug 31, 2024 |
| Q2 2024 | 4.25 | -3.05 | -41.8% | Mar 1, 2024 | May 31, 2024 |
| Q1 2024 | 8.77 | +2.88 | +48.9% | Dec 1, 2023 | Feb 29, 2024 |
| Q4 2023 | 8.35 | +2.28 | +37.5% | Sep 1, 2023 | Nov 30, 2023 |
| Q3 2023 | 8.23 | -0.4 | -4.63% | Jun 1, 2023 | Aug 31, 2023 |
| Q2 2023 | 7.3 | -3.2 | -30.5% | Mar 1, 2023 | May 31, 2023 |
| Q1 2023 | 5.89 | -5.75 | -49.4% | Dec 1, 2022 | Feb 28, 2023 |
| Q4 2022 | 6.07 | -6.42 | -51.4% | Sep 1, 2022 | Nov 30, 2022 |
| Q3 2022 | 8.63 | +1.31 | +17.9% | Jun 1, 2022 | Aug 31, 2022 |
| Q2 2022 | 10.5 | -12.4 | -54% | Mar 1, 2022 | May 31, 2022 |
| Q1 2022 | 11.6 | -9.9 | -45.9% | Dec 1, 2021 | Feb 28, 2022 |
| Q4 2021 | 12.5 | -8.54 | -40.6% | Sep 1, 2021 | Nov 30, 2021 |
| Q3 2021 | 7.32 | -19.9 | -73.1% | Jun 1, 2021 | Aug 31, 2021 |
| Q2 2021 | 22.9 | +19.6 | +592% | Mar 1, 2021 | May 31, 2021 |
| Q1 2021 | 21.6 | +17.4 | +422% | Dec 1, 2020 | Feb 28, 2021 |
| Q4 2020 | 21 | +16.5 | +364% | Sep 1, 2020 | Nov 30, 2020 |
| Q3 2020 | 27.2 | +23.5 | +627% | Jun 1, 2020 | Aug 31, 2020 |
| Q2 2020 | 3.3 | -2.69 | -44.9% | Mar 1, 2020 | May 31, 2020 |
| Q1 2020 | 4.13 | -1.53 | -27.1% | Dec 1, 2019 | Feb 29, 2020 |
| Q4 2019 | 4.53 | -3.11 | -40.7% | Sep 1, 2019 | Nov 30, 2019 |
| Q3 2019 | 3.74 | -4.1 | -52.3% | Jun 1, 2019 | Aug 31, 2019 |
| Q2 2019 | 5.99 | -1.48 | -19.8% | Mar 1, 2019 | May 31, 2019 |
| Q1 2019 | 5.65 | -3.04 | -35% | Dec 1, 2018 | Feb 28, 2019 |
| Q4 2018 | 7.64 | +0.38 | +5.24% | Sep 1, 2018 | Nov 30, 2018 |
| Q3 2018 | 7.84 | -0.06 | -0.76% | Jun 1, 2018 | Aug 31, 2018 |
| Q2 2018 | 7.46 | -1.73 | -18.8% | Mar 1, 2018 | May 31, 2018 |
| Q1 2018 | 8.7 | -0.87 | -9.09% | Dec 1, 2017 | Feb 28, 2018 |
| Q4 2017 | 7.26 | -2.35 | -24.5% | Sep 1, 2017 | Nov 30, 2017 |
| Q3 2017 | 7.9 | -0.79 | -9.09% | Jun 1, 2017 | Aug 31, 2017 |
| Q2 2017 | 9.19 | +2.03 | +28.4% | Mar 1, 2017 | May 31, 2017 |
| Q1 2017 | 9.57 | +3.9 | +68.8% | Dec 1, 2016 | Feb 28, 2017 |
| Q4 2016 | 9.61 | +6.79 | +241% | Sep 1, 2016 | Nov 30, 2016 |
| Q3 2016 | 8.69 | +5.7 | +191% | Jun 1, 2016 | Aug 31, 2016 |
| Q2 2016 | 7.16 | +3.73 | +109% | Mar 1, 2016 | May 31, 2016 |
| Q1 2016 | 5.67 | +2.13 | +60.3% | Dec 1, 2015 | Feb 29, 2016 |
| Q4 2015 | 2.82 | -3.67 | -56.5% | Sep 1, 2015 | Nov 30, 2015 |
| Q3 2015 | 2.98 | -3.41 | -53.4% | Jun 1, 2015 | Aug 31, 2015 |
| Q2 2015 | 3.43 | -3.65 | -51.6% | Mar 1, 2015 | May 31, 2015 |
| Q1 2015 | 3.53 | -3.85 | -52.1% | Dec 1, 2014 | Feb 28, 2015 |
| Q4 2014 | 6.49 | -0.95 | -12.8% | Sep 1, 2014 | Nov 30, 2014 |
| Q3 2014 | 6.39 | -1.71 | -21.1% | Jun 1, 2014 | Aug 31, 2014 |
| Q2 2014 | 7.07 | -0.1 | -1.39% | Mar 1, 2014 | May 31, 2014 |
| Q1 2014 | 7.39 | -0.84 | -10.2% | Dec 1, 2013 | Feb 28, 2014 |
| Q4 2013 | 7.44 | -0.22 | -2.87% | Sep 1, 2013 | Nov 30, 2013 |
| Q3 2013 | 8.11 | +1.31 | +19.3% | Jun 1, 2013 | Aug 31, 2013 |
| Q2 2013 | 7.17 | +0.56 | +8.47% | Mar 1, 2013 | May 31, 2013 |
| Q1 2013 | 8.23 | +1.42 | +20.9% | Dec 1, 2012 | Feb 28, 2013 |
| Q4 2012 | 7.66 | +0.54 | +7.59% | Sep 1, 2012 | Nov 30, 2012 |
| Q3 2012 | 6.79 | -0.59 | -8% | Jun 1, 2012 | Aug 31, 2012 |
| Q2 2012 | 6.61 | -0.66 | -9.08% | Mar 1, 2012 | May 31, 2012 |
| Q1 2012 | 6.81 | Dec 1, 2011 | Feb 29, 2012 | ||
| Q4 2011 | 7.11 | Sep 1, 2011 | Nov 30, 2011 | ||
| Q3 2011 | 7.38 | Jun 1, 2011 | Aug 31, 2011 | ||
| Q2 2011 | 7.27 | Mar 1, 2011 | May 31, 2011 |
| Period | Value | YoY Chg | Change % | Start Date | End Date |
|---|---|---|---|---|---|
| 2024 | 3.69 | +0.54 | +17.1% | Jun 1, 2024 | May 31, 2025 |
| 2023 | 3.15 | -3.95 | -55.6% | Jun 1, 2023 | May 31, 2024 |
| 2022 | 7.1 | -4.88 | -40.7% | Jun 1, 2022 | May 31, 2023 |
| 2021 | 12 | -18.3 | -60.5% | Jun 1, 2021 | May 31, 2022 |
| 2020 | 30.3 | +27.2 | +886% | Jun 1, 2020 | May 31, 2021 |
| 2019 | 3.07 | -2.81 | -47.8% | Jun 1, 2019 | May 31, 2020 |
| 2018 | 5.88 | -2.88 | -32.9% | Jun 1, 2018 | May 31, 2019 |
| 2017 | 8.76 | -1.43 | -14% | Jun 1, 2017 | May 31, 2018 |
| 2016 | 10.2 | +3.78 | +59% | Jun 1, 2016 | May 31, 2017 |
| 2015 | 6.41 | +2.82 | +78.6% | Jun 1, 2015 | May 31, 2016 |
| 2014 | 3.59 | -4.37 | -54.9% | Jun 1, 2014 | May 31, 2015 |
| 2013 | 7.96 | +0.15 | +1.92% | Jun 1, 2013 | May 31, 2014 |
| 2012 | 7.81 | +0.5 | +6.85% | Jun 1, 2012 | May 31, 2013 |
| 2011 | 7.3 | Jun 1, 2011 | May 31, 2012 |