| alternate fuel |
110,000/mo |
$4.74 |
| alternative fuel cars |
9,900/mo |
$4.09 |
| alternative fuel vehicle |
5,400/mo |
$4.19 |
| alternative fuels for cars |
6,600/mo |
$4.07 |
| alternative fuel source |
12,100/mo |
$5.66 |
| renewable energy |
1,220,000/mo |
$5.32 |
| alternative energy |
450,000/mo |
$5.48 |
| alternative fuel sources |
12,100/mo |
$5.70 |
| sustainable energy |
450,000/mo |
$6.36 |
| alternative auto fuel |
3,600/mo |
$4.06 |
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