Three months ended December, 31		Twelve months ended December, 31
	1997	1996	1997	1996
Net revenues	$396,304	$325,569	$1,442,677	$1,174,158
Operating charges:
Operating expenses	161,882	127,986	575,088	458,063
Salaries and wages	146,033	117,126	514,407	420,525
Provision for doubtful accounts	28,597	21,511	108,790	80,820
Depreciation and amortization	21,788	21,227	80,686	71,941
Lease and rental expense	9,932	9,065	38,401	37,484
Interest expense, net	4,476	5,415	19,382	21,258
Nonrecurring charges	0	4,063	0	4,063
	372,708	306,393	1,336,754	1,094,154
Income before income taxes	23,596	19,176	105,923	80,004
Provision for income taxes	8,576	7,507	38,647	29,333
Net income	$15,020	$11,669	$67,276	$50,671
Earnings per share - basic	$0.46	$0.36	$2.08	$1.69
Earnings per share - diluted	$0.45	$0.36	$2.03	$1.65
Average number of shares outstanding - basic	32,402	32,100	32,321	30,054
Stock equivalents	790	714	777	744
Average number of shares outstanding - diluted	33,192	32,814	33,098	30,798