year-over-year change 24.5% ( 24.5 % ) fffd19.1% ( fffd19.1 % ) our 2006 and 2005 cash flow ( as defined ) performance reflects increased spending for selected capacity expansions to accommodate our company 2019s strong sales growth over the past several years . this increased capital spending represented 4.2% ( 4.2 % ) of net sales in 2006 and 3.7% ( 3.7 % ) of net sales in 2005 , as compared to 2.9% ( 2.9 % ) in 2004