(in thousands, except per share amounts)	1998		1997		% Change
	Operating revenues	$2,110,360		$1,956,253		+8%
	Income from operations	$378,897		$381,351		–1%
	Net income	$417,259		$281,574		+48%
	Basic earnings per common share	$41.27		$26.23		+57%
	Diluted earnings per common share	$41.10		$26.15		+57%
	Dividends per common share	$5.00		$4.80		+4%
	Common shareholders' equity per share	$157.34		$117.36		+34%
	Basic average number of common   shares outstanding	10,087		10,700		–6%
	Diluted average number of common   shares outstanding	10,129		10,733		–6%