| Maturity age | b | 95% confidence limit | P-value | Clockwise or anticlockwise | Judgment of slope b | |
| Lower | Higher | |||||
| 1 | 0.946 | 0.864 | 1.027 | 2.20 (10−16) | Clockwise | b = 1 |
| 2 | 0.800 | 0.646 | 0.953 | 7.10 (10−15) | Clockwise | 0 < b < 1 |
| 3 | 0.579 | 0.369 | 0.789 | 8.39 (10−7) | Clockwise | 0 < b < 1 |
| 4 | 0.311 | 0.065 | 0.556 | 1.39 (10−2) | Clockwise | 0 < b< 1 |
| 5 | 0.050 | −0.208 | 0.308 | 0.699 | Clockwise | b = 0 |
| 6 | −0.244 | −0.494 | 5.66 (10−3) | 5.53 (10−2) | Clockwise | b = 0 |
| 7 | −0.266 | −0.522 | −0.010 | 0.042 | Both | b < 0 |
| 8 | −0.380 | −0.608 | −0.152 | 1.47 (10−3) | Both | b < 0 |
| 9 | −0.124 | −0.376 | 0.129 | 0.331 | Both | b = 0 |
| 10 | 1.04 (10−4) | −0.311 | 0.311 | 0.9995 | Both | b = 0 |
| 11 | −0.143 | −0.408 | 0.122 | 0.284 | Both | b = 0 |
| 12 | −0.241 | −0.494 | 1.15 (10−2) | 0.061 | Anticlockwise | b = 0 |
| 13 | −0.098 | −0.331 | 0.331 | 0.404 | Anticlockwise | b = 0 |
| 14 | 0.247 | 4.12 (10−3) | 0.489 | 0.39 | Anticlockwise | 0 < b < 1 |
| 15 | 0.390 | 0.149 | 0.631 | 1.96 (10−3) | Anticlockwise | 0 < b < 1 |
| 16 | 0.598 | 0.419 | 0.776 | 8.79 (10−9) | Anticlockwise | 0 < b < 1 |
| 17 | 0.901 | 0.755 | 1.048 | 2.20 (10−16) | Anticlockwise | b = 1 |
| 18 | 1.147 | 1.009 | 1.266 | 2.20 (10−16) | Anticlockwise | 1 < b < 2 |
| 19 | 1.344 | 1.264 | 1.423 | 2.20 (10−16) | Anticlockwise | 1 < b < 2 |
| Sardine | 0.764 | 0.634 | 0.874 | 2.20 (10−16) | Clockwise | 0 < b < 1 |
| Bluefin tuna | 0.211 | −0.048 | 0.471 | 0.109 | Anticlockwise | b = 0 |