| Variables | N | Minimum | Maximum | Mean | Std. Deviation |
| pumps per station | 184 | 4.74 | 13.76 | 8.5077 | 1.36203 |
| concentration | 184 | 4.55 | 49.46 | 27.6688 | 10.83850 |
| percent self-serve | 184 | .15 | .95 | .7000 | .17158 |
| population density | 184 | 190.64 | 3221.91 | 814.5410 | 676.96488 |
| retail price-cost margin | 184 | .05 | .32 | .1696 | .05169 |
| tax | 184 | .14 | .28 | .2096 | .02885 |
| weighted average stores passed using FHA data | 184 | .93 | 20.92 | 5.6194 | 4.25014 |
| weighted average stores passed using old commuting data | 184 | .257 | 6.322 | 1.93159 | 1.495784 |
| wholesale price change | 184 | -.38 | .24 | -.0283 | .14671 |
| tax change | 184 | -.02 | .09 | .0125 | .02341 |