| Group | A | B | C | Extraction rate (%) |
|---|---|---|---|---|
| 1 | –1 | 1 | 0 | 53.71 ± 1.40 |
| 2 | –1 | 0 | 1 | 53.59 ± 2.78 |
| 3 | –1 | 0 | –1 | 51.55 ± 2.42 |
| 4 | 1 | 0 | –1 | 51.56 ± 0.28 |
| 5 | 0 | –1 | –1 | 51.99 ± 1.28 |
| 6 | –1 | –1 | 0 | 52.53 ± 0.98 |
| 7 | 1 | 0 | 1 | 51.85 ± 0.74 |
| 8 | 0 | 1 | –1 | 52.14 ± 0.54 |
| 9 | 1 | –1 | 0 | 51.02 ± 0.18 |
| 10 | 0 | 0 | 0 | 58.76 ± 0.70 |
| 11 | 0 | 0 | 0 | 58.29 ± 2.15 |
| 12 | 1 | 1 | 0 | 51.95 ± 0.79 |
| 13 | 1 | 0 | 0 | 58.53 ± 1.66 |
| 14 | 1 | 1 | 1 | 53.52 ± 0.24 |
| 15 | 0 | –1 | 1 | 51.58 ± 1.40 |
| 16 | 0 | 0 | 0 | 58.19 ± 0.84 |
| 17 | 0 | 0 | 0 | 58.70 ± 0.69 |