| Share | Phrase |
|---|
| 28.68% | recycled [physical/chemical] fuel |
| 28.23% | recycled [physical/chemical] gas |
| 20.93% | recycled [physical/chemical] vapor |
| 11.62% | recycled [physical/chemical] fraction |
| 6.36% | recycled [physical/chemical] quantity |
| 4.14% | recycled [physical/chemical] portion |