| Stress id | stdev (Weibull) | stdev (DATA) | stdev ratioDATA/Weibull |
| S1 | 34.696 | 39.31 | 1.133 |
| S2 | 12.96 | 14.27 | 1.101 |
| S3 | 4.9708 | 5.3393 | 1.074 |
| S4 | 4.756 | 5.3479 | 1.124 |