| 2016 112 | 8 31 | | | | | | | 2015 78 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2020 | | | | | | | | | | | | | | 30% | | 20% | | 80% 60% | | 50% | 20 | | | | ⒈ | | | | | | | | | | | | | | | | ⒉ | | | | | | 4G | | | | | | | | ⒊ | | | | | | | | | | | | | | | | | | | | | | ⒈ | | | | | | | | | | | | | ⒉ | | | | | | | | | | ⒊ | | | | | | | | | | | | | | | | | | | | ⒈ | | | | | | | | | | | | | | | ⒉ | | | | | | | | | | | | | | | | | | | | | | ⒊ | | | | | | | | | | | | | | | | | | ⒋ | | | | | | | | | | | | | | | | ⒌ | | | | | | | | | | | | | | |