Item 6. SELECTED FINANCIAL DATA



	Year Ended December 31,
(In thousands, except per share amounts
and operating statistics)	2012			2011			2010			2009			2008
Operating Data:
Revenue from operations	$	2,110,483		$	1,882,541		$	1,480,998		$	1,245,005		$	1,537,724
Depreciation and amortization expense (1)	110,743			90,820			80,362			94,784			87,083
Total operating expenses	1,825,229			1,648,469			1,343,259			1,174,614			1,408,654
Operating income	285,254			234,072			137,739			70,391			129,070
Interest expense, net (2)	11,428			13,887			12,465			12,998			13,012
Provision for income taxes	103,646			80,614			48,775			22,294			43,989
Net income	169,452			139,470			75,651			34,871			68,677
Per Share Data:
Diluted earnings per share (3)	1.97			1.63			0.90			0.42			0.82
Balance Sheet Data:
Cash, cash equivalents and short-term investments	12,857			75,850			5,450			4,171			28,965
Current assets	275,028			331,852			222,582			174,175			209,230
Total assets	1,712,514			1,513,074			1,239,881			1,159,278			1,074,905
Current liabilities	225,139			204,810			170,046			148,125			142,190
Long-term debt (including current maturities)	240,407			269,185			271,217			305,532			251,989
Shareholders’ equity	1,025,969			856,519			668,649			593,000			558,129
Operating Statistics:
Operating ratio	86.5		%	87.6		%	90.7		%	94.3		%	91.6		%
Revenue per hundredweight	$	15.35		$	14.72		$	13.09		$	12.70		$	13.88
Revenue per intercity mile	$	5.02		$	4.83		$	4.38		$	4.16		$	4.60
Intercity miles (in thousands)	420,214			389,588			338,504			299,330			334,219
Total tons (in thousands)	6,875			6,397			5,656			4,902			5,545
Total shipments (in thousands)	7,765			7,256			6,327			5,750			6,691
Average length of haul (miles)	941			952			948			928			901


(1)	Our 2010 results reflect reductions in our depreciation and amortization expenses of approximately $12.7 million, due to changes in the estimated useful lives and salvage values of certain equipment, which are described further under “Critical Accounting Policies” below.


(2)	For the purpose of this table, interest expense is presented net of interest income.


(3)	Per share data has been restated retroactively for the three-for-two stock splits effected in September 2012 and August 2010.