| Revenue | 14.54a | 14.66a | 14.85a |
| Expense | — | — | — |
| Labor and fringe | -3.17a | -3.05a | -2.89a |
| Purchased services and other | -2.85a | -2.8a | -2.73a |
| Depreciation and amortization | -1.66a | -1.61a | -1.5a |
| Fuel | -1.17a | -1.38a | -1.63a |
| Equipment and other rents | -0.36a | -0.35a | -0.4a |
| Goodwill impairment | -0.11a | | |
| Gains on property dispositions | -0.01a | -0.03a | -0.24a |
| Total expense | -9.3a | -9.16a | -8.9a |
| Operating income | 5.25a | 5.5a | 5.95a |
| Interest expense | -0.83a | -0.81a | -0.74a |
| Other income - net | 0.14a | 0.14a | 0.13a |
| Earnings before income taxes | 4.56a | 4.83a | 5.35a |
| Income tax expense | -1.09a | -1.16a | -1.23a |
| Net earnings | 3.47a | 3.67a | 4.11a |