1 2 | 2 | | | | | | | | 16 | 8 | | 1% 1. 5% | 7 10 | | 12 16 4 | 5 7 8 | 2.5% | | | | 70% | 90% 17%︱19% | 2700︱2750 3%︱4% | 70% 80% | 100 1 2 | | |