Sales for the three months ended January 2 , 2010 , were $ 463.3 million , a 4.1 % decrease from the $ 483.0 million reported for the three months ended December 27 , 2008 . � � Fourth quarter sales of high efficiency products were 16.5 % of total sales as compared to 12.0 % for the fourth quarter 2008 . � � Full year sales of high efficiency products were 17.2 % as compared to 12.8 % for 2008 .