YEAR ENDED DECEMBER 31,
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1998 1997 1996
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Expenses
Operating……………………….. 1,593,728 1,219,268 854,478
Marketing, selling and administrative. 359,214 272,368 194,629
Depreciation and amortization……… 194,614 143,816 91,185
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2,147,556 1,635,452 1,140,292
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Operating Income…………………… 488,735 303,555 217,033
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Other Income (Expense)
Interest income………………….. 15,912 4,666 2,278
Income Before Extraordinary Item…….. 330,770 182,685 150,866
Extraordinary Item…………………. — (7,558) —
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Net Income………………………… $ 330,770 $ 175,127 $ 150,866
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