| Parameter | Number (%) |
|---|---|
| AL group | |
| < 22 mm | 1840 (6.4%) |
| 22–25 mm | 21309 (74.2%) |
| 25–27 mm | 2221 (7.7%) |
| 27–30 mm | 1879 (6.5%) |
| ≥ 30 mm | 1460 (5.1%) |
| ACD group | |
| < 2.0 mm | 413(1.4%) |
| 2.0–2.5 mm | 3000 (10.4%) |
| 2.5–3.0 mm | 9752 (34%) |
| 3.0–3.5 mm | 11223 (39.1%) |
| > 3.5 mm | 4321 (15.1%) |