| Total Revenue | | 56,053 | 54,811 | 51,722 | |
| Cost of Goods Sold Incl. D&A | | 13,862 | 13,690 | 12,827 |
| Gross Profit | | 42,191 | 41,122 | 38,895 |
| Selling, General and Administrative Excl. Other | | 13,326 | 13,306 | 12,566 |
| Research and Development | | 11,248 | 10,742 | 10,022 |
| Other Operating Expense | | 497 | 0 | 1,763 |
| Operating Income | | 17,121 | 17,074 | 14,544 |
| Interest Expense | | 1,222 | 1,187 | 1,036 |
| Unusual Expense | | — | — | — |
| Non-Operating Income (Expense) | | 120 | -561 | -102 |
| Net Income Before Taxes | | 15,784 | 16,436 | 13,640 |
| Income Taxes | | 2,270 | 2,397 | 1,701 |
| Consolidated Net Income | | 13,534 | 14,056 | 11,941 |
| Net Income From Continuing Operations | | 13,514 | 14,039 | 11,939 |
| Net Income | | 13,534 | 14,056 | 11,941 |
| EPS (Recurring) | | 7.02 | 7.25 | 5.92 |
| EPS (Basic, Before Extraordinaries) | | 7.02 | 7.25 | 5.92 |
| EPS (Diluted) | | 6.98 | 7.19 | 5.87 |
| EBITDA | | 22,400 | 22,987 | 20,715 |
| Other After Tax Adjustments | | — | — | — |
| Stock Option Compensation Expense | | — | — | — |
| Price To Earnings Ratio | | 21.07 | 19.18 | — |
| Price To Sales Ratio | | 5.01 | 4.88 | — |
| Gross Margin | | 75.27 | 75.03 | 75.20 |
| Operating Margin | | 30.54 | 31.15 | 28.12 |
| Net Margin | | 24.15 | 25.64 | 23.09 |
| Shares Outstanding | | 1,909 | 1,939 | 2,018 |
| Market Capitalization | | 280,776 | 267,330 | — |
| Operating Lease Expense | | — | — | — |
