| st | Approximation | Level 4 dir1 | Level 3 dir1 | Level dir1 | Level1 dir1 |
| 5 | −1.3113 | 0.9037 | 0.90305 | 0.90768 | 1 |
| 7 | −1.3211 | 0.86897 | 0.9039 | 0.90932 | 1 |
| 16 | 0.99457 | 0.92252 | 0.98336 | 0.96372 | 1 |
| 17 | −1.393 | 0.89211 | 0.88746 | 0.90565 | 1 |
| 24 | 0.044873 | 0.99928 | 0.99517 | 0.94851 | 1 |
| 30 | −0.99093 | 0.8824 | 0.87439 | 0.90408 | 1 |
| 35 | 0.70656 | 0.90976 | 0.90331 | 0.90827 | 1 |
| 36 | −0.58183 | 0.8679 | 0.90503 | 0.90386 | 1 |
| 41 | 0.72172 | 0.90588 | 0.90766 | 0.91263 | 1 |
| 47 | 0.68528 | 0.91129 | 0.90552 | 0.91166 | 1 |
| 57 | 0.70443 | 0.90379 | 0.90402 | 0.90377 | 1 |
| 62 | −1.0428 | 0.90295 | 0.90467 | 0.90013 | 1 |
| 64 | 0.98915 | 0.8511 | 0.9664 | 0.93017 | 1 |
| Average | −0.4344 | 0.9047 | 0.9138 | 0.9109 | 1 |