| surged in past few years | 0.43 |
| surged in popularity | 0.40 |
| become popular | 0.40 |
| weigh 40.8 kilos | 0.25 |
| surged in recognition | 0.22 |
| affect the wildlife | 0.16 |
| on wheel | 0.56 |
| all the rage | 0.38 |
| on display | 0.34 |
| off-grid | 0.16 |
| built | 0.72 |
| built on trailer | 0.55 |
| built on foundation | 0.41 |
| parked | 0.30 |