| Independent Variables | Coefficient | t-Statistic | P-Value |
| C | 19371.57 | 8.651505 | 0.0000 |
| ETH | 22867.54 | 3.666341 | 0.0004 |
| AREA | 11440.79 | 1.909228 | 0.0595 |
| ETH*HS | 4955.354 | 3.672086 | 0.0004 |
| MS*AREA | 10837.04 | 3.079800 | 0.0028 |
| AREA*HS | 170.6195 | 3.390534 | 0.0011 |
| R-squared | 0.234262 | ||
| Adjusted R-squared | 0.191243 | ||
| S.E. of regression | 11469.15 | ||
| Sum squared resid | 1.17E + 10 | ||
| Log likelihood | −1019.705 | ||
| F-statistic | 5.445560 | ||
| Prob (F-statistic) | 0.000204 |