Period | Obs. | Min | Max | Mean | Std. | CV |
2010.11-2015.11 | 280 | 0.03 | 0.59 | 0.1486 | 0.1452 | 0.9767 |
2015.12-2016.10 | 46 | 0.05 | 0.072 | 0.0509 | 0.0037 | 0.0734 |
2016.10-2018.12 | 122 | 0.125 | 1.098 | 0.6661 | 0.2741 | 0.4115 |