θ in degrees | lane 1 | lane 2 | mean |
0 | 1.11 ± 0.03 | 1.00 ± 0.14 | 1.05 ± 0.09 |
30 | 1.42 ± 0.09 | 1.34 ± 0.09 | 1.38 ± 0.09 |
60 | 1.74 ± 0.07 | 1.71 ± 0.07 | 1.73 ± 0.07 |
90 | 2.00 ± 0.10 | 2.08 ± 0.10 | 2.04 ± 0.10 |