| 2019 4 | | | | | | 2018 39 | | | | | | | | | | | | | | | | | | | | | 50% | 2019 1 1 12 31 | | | | | | | 50% | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2016 2020 | | | 15 | | | | 25% 100 | 15% 1 | 300 | | | | | | | | | | | | | | | | | | | | | | 5000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2019 1 1 | 2021 3 | | | 16 24 | 3 12 | | | 50% | | 50% | 60% | | | | | 2019 1 1 12 31 | | | | | | | | | | | 1 2 | | | | | | | | | | | | | | | | | | | | | | 2019 1 1 | 2020 12 31 | | | | | | | | | | | | | | | | | 2019 1 1 2020 12 | 31 | | 3 3 | 1 1 | | | | | | | | 1000 1500 2000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 30 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |