| Variable | NS |
| lnT | 0.126*** (0.000) |
| lnS | 1.078** (0.010) |
| RA | 0.037** (0.008) |
| DA | −0.05* (0.038) |
| FR | 0.171** (0.010) |
| G | 0.003* (0.115) |
| N | 27 |
| R-Squared | 0.266 |