| 处理代号 | 2017 | 2018 | ||
| 发病率(%) | 病情指数 | 发病率(%) | 病情指数 | |
| I1 | 4.5 | 1 | 8.6 | 2 |
| I2 | 5.0 | 1 | 9.1 | 2 |
| II1 | 0 | 0 | 0 | 0 |
| II2 | 0 | 0 | 0 | 0 |
| III1 | 0 | 0 | 0 | 0 |
| III2 | 0 | 0 | 0 | 0 |