Exhibit 23 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS 	As independent public accountants, we hereby consent to the incorporation of our report dated January 25, 1999 included in this Form 10-K, into the Company's previously filed Registration Statements, File Numbers 33-22358, 33-52242, 333-09547, 333-33727, 333-39889 and 333-39899. 										/s/ ARTHUR ANDERSEN LLP 	ARTHUR ANDERSEN LLP Seattle, Washington February 10, 1999