| | | | | | | | | 2018 5 1 | | 20% 19% 2019 | 4 30 | | | | 2019 4 30 | | 1% | 0. 5% 2% | | | 2018 5 1 | 24 | | 50% 18 | 23 | | 20% | 2019 4 30 18 | | | | | | | | |