| År | Driftsmargin | Endre |
|---|---|---|
| Ikke nok data for de angitte datoene. | ||
| Selskap | Driftsmargin | Forskjell i driftsmargin | Land |
|---|---|---|---|
| 77.09% | -97.01% |
US
|
|
| 13.32% | -99.48% |
CA
|
|
| 11.66% | -99.55% |
US
|
|
| 31.71% | -98.77% |
CN
|
|
| 21.94% | -99.15% |
US
|