| 2020 1 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ︹ ︺ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2020 | | | | | | | | | | | | | | | | | | | | | | | | | | | 10% | 2020 | 0.5 | | | | | | | | | 50% | 1 | | | | | | | 1% | | | | | | | | | | | | | | | | | | | | 1 | | | | | | | | | | | | | 2020 3 | | | 1 | | | | | | | | | | | | | | | 3 | | | | | | | | 2 | | | | | | | | | | | | | | | 50% | | 6 | 50% | | | 2021 4 30 | | | | 6 | | 9 | | | | | | 3 | | | | | | | | | | | | | | | | | | 3 | | | | | ︹ ︺ | | | | | | | | | | | | | | | | | | | | | | | | | 95% | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2020 2 7 | | |