| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 20.2 | -4.56 | -18.5% | Jun 30, 2024 |
| Q1 2024 | 20.6 | -2.88 | -12.3% | Mar 31, 2024 |
| Q4 2023 | 20.9 | -2.36 | -10.2% | Dec 31, 2023 |
| Q3 2023 | 25.8 | +1.87 | +7.81% | Sep 30, 2023 |
| Q2 2023 | 24.7 | -0.12 | -0.48% | Jun 30, 2023 |
| Q1 2023 | 23.5 | -2.55 | -9.79% | Mar 31, 2023 |
| Q4 2022 | 23.3 | -4.17 | -15.2% | Dec 31, 2022 |
| Q3 2022 | 24 | -5.25 | -18% | Sep 30, 2022 |
| Q2 2022 | 24.8 | -6.15 | -19.9% | Jun 30, 2022 |
| Q1 2022 | 26.1 | -5.96 | -18.6% | Mar 31, 2022 |
| Q4 2021 | 27.4 | -4.11 | -13% | Dec 31, 2021 |
| Q3 2021 | 29.2 | -1.04 | -3.44% | Sep 30, 2021 |
| Q2 2021 | 31 | +2.26 | +7.87% | Jun 30, 2021 |
| Q1 2021 | 32 | +5.5 | +20.7% | Mar 31, 2021 |
| Q4 2020 | 31.5 | +6.69 | +26.9% | Dec 31, 2020 |
| Q3 2020 | 30.3 | +7.21 | +31.3% | Sep 30, 2020 |
| Q2 2020 | 28.7 | +6.83 | +31.2% | Jun 30, 2020 |
| Q1 2020 | 26.5 | +5.49 | +26.1% | Mar 31, 2020 |
| Q4 2019 | 24.8 | +4.03 | +19.4% | Dec 31, 2019 |
| Q3 2019 | 23 | +2.76 | +13.6% | Sep 30, 2019 |
| Q2 2019 | 21.9 | +3.49 | +19% | Jun 30, 2019 |
| Q1 2019 | 21 | +4.55 | +27.6% | Mar 31, 2019 |
| Q4 2018 | 20.8 | +6.01 | +40.6% | Dec 31, 2018 |
| Q3 2018 | 20.3 | +6.94 | +52% | Sep 30, 2018 |
| Q2 2018 | 18.4 | +4.19 | +29.5% | Jun 30, 2018 |
| Q1 2018 | 16.5 | +0.88 | +5.64% | Mar 31, 2018 |
| Q4 2017 | 14.8 | -1.66 | -10.1% | Dec 31, 2017 |
| Q3 2017 | 13.3 | -3.68 | -21.6% | Sep 30, 2017 |
| Q2 2017 | 14.2 | -2.56 | -15.3% | Jun 30, 2017 |
| Q1 2017 | 15.6 | -0.52 | -3.23% | Mar 31, 2017 |
| Q4 2016 | 16.5 | +0.55 | +3.46% | Dec 31, 2016 |
| Q3 2016 | 17 | +1.38 | +8.82% | Sep 30, 2016 |
| Q2 2016 | 16.8 | +0.98 | +6.2% | Jun 30, 2016 |
| Q1 2016 | 16.1 | 0 | 0% | Mar 31, 2016 |
| Q4 2015 | 15.9 | -0.05 | -0.31% | Dec 31, 2015 |
| Q3 2015 | 15.6 | -0.7 | -4.28% | Sep 30, 2015 |
| Q2 2015 | 15.8 | -1.22 | -7.17% | Jun 30, 2015 |
| Q1 2015 | 16.1 | -1.78 | -9.95% | Mar 31, 2015 |
| Q4 2014 | 16 | -3.59 | -18.4% | Dec 31, 2014 |
| Q3 2014 | 16.3 | -4.88 | -23% | Sep 30, 2014 |
| Q2 2014 | 17 | -4.77 | -21.9% | Jun 30, 2014 |
| Q1 2014 | 17.9 | -3.03 | -14.5% | Mar 31, 2014 |
| Q4 2013 | 19.5 | +0.21 | +1.09% | Dec 31, 2013 |
| Q3 2013 | 21.2 | +3.69 | +21.1% | Sep 30, 2013 |
| Q2 2013 | 21.8 | +5.42 | +33.1% | Jun 30, 2013 |
| Q1 2013 | 20.9 | +4.29 | +25.8% | Mar 31, 2013 |
| Q4 2012 | 19.3 | +5.4 | +38.8% | Dec 31, 2012 |
| Q3 2012 | 17.5 | +5.99 | +51.9% | Sep 30, 2012 |
| Q2 2012 | 16.4 | +7.28 | +80.1% | Jun 30, 2012 |
| Q1 2012 | 16.6 | +9.63 | +138% | Mar 31, 2012 |
| Q4 2011 | 13.9 | Dec 31, 2011 | ||
| Q3 2011 | 11.5 | Sep 30, 2011 | ||
| Q2 2011 | 9.08 | Jun 30, 2011 | ||
| Q1 2011 | 7 | Mar 31, 2011 |