. forfeitures are estimated based on an analysis of actual option forfeitures , adjusted to the extent historic forfeitures may not be indicative of forfeitures in the future . in addition , an expected dividend yield of zero is used in the option valuation model , because the company does not pay cash dividends and does not expect to pay any cash dividends in the foreseeable future . the weighted average grant-date fair value for options granted during fiscal years 2005 , 2006 , and 2007 was $ 8.05 , $ 6