| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 11.4 | -2.61 | -18.6% | Jun 30, 2024 |
| Q1 2024 | 12.2 | -2.17 | -15.1% | Mar 31, 2024 |
| Q4 2023 | 12.9 | -1.12 | -8% | Dec 31, 2023 |
| Q3 2023 | 13.5 | -0.28 | -2.03% | Sep 30, 2023 |
| Q2 2023 | 14 | +0.21 | +1.52% | Jun 30, 2023 |
| Q1 2023 | 14.3 | +0.45 | +3.24% | Mar 31, 2023 |
| Q4 2022 | 14 | -0.09 | -0.64% | Dec 31, 2022 |
| Q3 2022 | 13.8 | -0.6 | -4.17% | Sep 30, 2022 |
| Q2 2022 | 13.8 | -0.66 | -4.56% | Jun 30, 2022 |
| Q1 2022 | 13.9 | -0.57 | -3.94% | Mar 31, 2022 |
| Q4 2021 | 14.1 | -0.15 | -1.05% | Dec 31, 2021 |
| Q3 2021 | 14.4 | +0.38 | +2.72% | Sep 30, 2021 |
| Q2 2021 | 14.5 | +1 | +7.43% | Jun 30, 2021 |
| Q1 2021 | 14.5 | +1.44 | +11.1% | Mar 31, 2021 |
| Q4 2020 | 14.3 | +1.55 | +12.2% | Dec 31, 2020 |
| Q3 2020 | 14 | +2.26 | +19.3% | Sep 30, 2020 |
| Q2 2020 | 13.5 | +1.91 | +16.5% | Jun 30, 2020 |
| Q1 2020 | 13 | +1.77 | +15.7% | Mar 31, 2020 |
| Q4 2019 | 12.7 | +1.85 | +17.1% | Dec 31, 2019 |
| Q3 2019 | 11.7 | +0.48 | +4.27% | Sep 30, 2019 |
| Q2 2019 | 11.6 | -0.22 | -1.87% | Jun 30, 2019 |
| Q1 2019 | 11.3 | -1.79 | -13.7% | Mar 31, 2019 |
| Q4 2018 | 10.9 | -3.64 | -25.1% | Dec 31, 2018 |
| Q3 2018 | 11.3 | -4.72 | -29.6% | Sep 30, 2018 |
| Q2 2018 | 11.8 | -4.69 | -28.5% | Jun 30, 2018 |
| Q1 2018 | 13 | -3.37 | -20.5% | Mar 31, 2018 |
| Q4 2017 | 14.5 | -2.06 | -12.5% | Dec 31, 2017 |
| Q3 2017 | 16 | -0.8 | -4.77% | Sep 30, 2017 |
| Q2 2017 | 16.5 | -0.55 | -3.24% | Jun 30, 2017 |
| Q1 2017 | 16.4 | -0.76 | -4.43% | Mar 31, 2017 |
| Q4 2016 | 16.6 | -3.27 | -16.5% | Dec 31, 2016 |
| Q3 2016 | 16.8 | -5.85 | -25.9% | Sep 30, 2016 |
| Q2 2016 | 17 | -9.01 | -34.6% | Jun 30, 2016 |
| Q1 2016 | 17.2 | -12.7 | -42.6% | Mar 31, 2016 |
| Q4 2015 | 19.8 | -11.6 | -37% | Dec 31, 2015 |
| Q3 2015 | 22.6 | -10.8 | -32.2% | Sep 30, 2015 |
| Q2 2015 | 26 | -9.48 | -26.7% | Jun 30, 2015 |
| Q1 2015 | 29.9 | -8.01 | -21.1% | Mar 31, 2015 |
| Q4 2014 | 31.5 | -9.02 | -22.3% | Dec 31, 2014 |
| Q3 2014 | 33.4 | -9.04 | -21.3% | Sep 30, 2014 |
| Q2 2014 | 35.5 | -9.44 | -21% | Jun 30, 2014 |
| Q1 2014 | 37.9 | -9.44 | -19.9% | Mar 31, 2014 |
| Q4 2013 | 40.5 | -9.33 | -18.7% | Dec 31, 2013 |
| Q3 2013 | 42.4 | -6.31 | -13% | Sep 30, 2013 |
| Q2 2013 | 44.9 | -2.17 | -4.61% | Jun 30, 2013 |
| Q1 2013 | 47.4 | Mar 31, 2013 | ||
| Q4 2012 | 49.8 | Dec 31, 2012 | ||
| Q3 2012 | 48.7 | Sep 30, 2012 | ||
| Q2 2012 | 47.1 | Jun 30, 2012 |