| | 2008 | 2007 | 2006 | 2005 | 2004 | | Period End Date | 12/31/2008 | 12/31/2007 | 12/31/2006 | 12/31/2005 | 12/31/2004 | | Period Length | 12 Months | 12 Months | 12 Months | 12 Months | 12 Months | | Stmt Source | 20-F | 20-F | 20-F | 20-F | 20-F | | Stmt Source Date | 06/23/2009 | 06/11/2008 | 06/11/2008 | 06/09/2006 | 06/09/2006 | | Stmt Update Type | Updated | Updated | Restated | Updated | Reclassified | | | | | | | | | Revenue | 392,429.0 | 338,953.0 | 280,648.0 | 181,772.0 | 163,586.0 | | Other Revenue, Total | 19,914.0 | 18,006.0 | 14,710.0 | 67,804.0 | 47,051.0 | | Total Revenue | 412,343.0 | 356,959.0 | 295,358.0 | 249,576.0 | 210,637.0 | | | | | | | | | Cost of Revenue, Total | 24,905.0 | 23,830.0 | 21,234.0 | 28,555.0 | 24,387.0 | | Gross Profit | 367,524.0 | 315,123.0 | 259,414.0 | 153,217.0 | 139,199.0 | | | | | | | | | Selling/General/Administrative Expenses, Total | 116,992.0 | 96,250.0 | 83,107.0 | 87,878.0 | 74,596.0 | | Research & Development | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Depreciation/Amortization | 71,713.0 | 67,612.0 | 64,777.0 | 55,422.0 | 47,050.0 | | Interest Expense (Income), Net Operating | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Unusual Expense (Income) | 3,248.0 | 2,781.0 | 2,910.0 | 0.0 | 0.0 | | Other Operating Expenses, Total | 52,870.0 | 42,418.0 | 31,405.0 | 0.0 | 0.0 | | Operating Income | 142,615.0 | 124,068.0 | 91,925.0 | 77,721.0 | 64,604.0 | | | | | | | | | Interest Income (Expense), Net Non-Operating | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Gain (Loss) on Sale of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Other, Net | 2,693.0 | 2,971.0 | 3,330.0 | 499.0 | 949.0 | | Income Before Tax | 149,743.0 | 129,238.0 | 96,176.0 | 78,489.0 | 64,847.0 | | | | | | | | | Income Tax - Total | 36,789.0 | 42,059.0 | 30,062.0 | 23,945.0 | 19,764.0 | | Income After Tax | 112,954.0 | 87,179.0 | 66,114.0 | 54,544.0 | 45,083.0 | | | | | | | | | Minority Interest | -161.0 | -117.0 | -88.0 | -40.0 | -22.0 | | Equity In Affiliates | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | U.S. GAAP Adjustment | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Net Income Before Extra. Items | 112,793.0 | 87,062.0 | 66,026.0 | 54,504.0 | 45,061.0 | | | | | | | | | Total Extraordinary Items | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Net Income | 112,793.0 | 87,062.0 | 66,026.0 | 54,504.0 | 45,061.0 | | | | | | | | | | | | | | |  Total Adjustments to Net Income | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | Preferred Dividends | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | General Partners' Distributions | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| | | | | | | | | Basic Weighted Average Shares | 20,043.93 | 20,005.12 | 19,892.97 | 19,738.23 | 19,673.19 | | Basic EPS Excluding Extraordinary Items | 5.63 | 4.35 | 3.32 | 2.76 | 2.29 | | Basic EPS Including Extraordinary Items | 5.63 | 4.35 | 3.32 | 2.76 | 2.29 | | | | | | | | | Diluted Weighted Average Shares | 20,356.13 | 20,339.43 | 20,078.55 | 19,892.16 | 19,774.09 | | Diluted EPS Excluding Extrordinary Items | 5.54 | 4.28 | 3.29 | 2.75 | 2.29 | | Diluted EPS Including Extraordinary Items | 5.54 | 4.28 | 3.29 | 2.75 | 2.29 | | | | | | | | | Dividends per Share - Common Stock Primary Issue | 2.42 | 1.9 | 0.85 | 1.06 | 0.7 | | Gross Dividends - Common Stock | 48,364.0 | 39,883.0 | 31,181.0 | 21,026.0 | 13,789.0 | | Interest Expense, Supplemental | 1,550.0 | 1,825.0 | 1,510.0 | 1,346.0 | 1,738.0 | | Depreciation, Supplemental | 71,509.0 | 67,354.0 | 64,574.0 | 55,422.0 | 47,050.0 | | | | | | | | | Normalized EBITDA | 217,576.0 | 194,461.0 | 159,612.0 | 133,143.0 | 111,654.0 | | Normalized EBIT | 145,863.0 | 126,849.0 | 94,835.0 | 77,721.0 | 64,604.0 | | Normalized Income Before Tax | 152,991.0 | 132,019.0 | 99,086.0 | 78,489.0 | 64,847.0 | | Normalized Income After Taxes | 115,404.0 | 89,055.0 | 68,114.0 | 54,544.0 | 45,083.0 | | Normalized Income Available to Common | 115,243.0 | 88,938.0 | 68,026.0 | 54,504.0 | 45,061.0 | | | | | | | | | Basic Normalized EPS | 5.75 | 4.45 | 3.42 | 2.76 | 2.29 | | Diluted Normalized EPS | 5.66 | 4.37 | 3.39 | 2.75 | 2.29 | | Amortization of Intangibles | 204.0 | 258.0 | 203.0 | 0.0 | 0.0 |
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