| Revenues | 1.56a | 1.49a | 1.42a |
| Costs and expenses | — | — | — |
| Cost of revenues | -0.19a | -0.2a | -0.2a |
| Research and development | -0.1a | -0.09a | -0.09a |
| Selling, general and administrative | -0.21a | -0.2a | -0.2a |
| Total costs and expenses | -0.5a | -0.49a | -0.48a |
| Operating income | 1.06a | 1a | 0.94a |
| Interest expense | -0.08a | -0.08a | -0.08a |
| Non-operating income, net | 0.04a | 0.05a | 0.01a |
| Income before income taxes | 1.02a | 0.98a | 0.88a |
| Income tax expense | -0.24a | -0.16a | -0.21a |
| Net income | 0.79a | 0.82a | 0.67a |