| 变量 | CAVG-CNP | CAVG-CPP | ||
| 参数值 | t统计量 | 参数值 | t统计量 | |
| ν | 4.1655 (0.957) | 4.3518 | 4.4311 (1.051) | 4.2161 |
| α | 0.0495 (0.068) | 0.7272 | 0.0159 (0.043) | 0.3695 |
| β | 0.7182 (0.161) | 4.4583 | 0.9603 (0.103) | 9.3170 |
| LL | 9.1600 | 8.5930 | ||
| AIC | −12.3200 | −11.1865 | ||
| BIC | 2.0705 | 3.2039 | ||