.0 million , $ 16.8 million and $ 17.7 million for the years ended december 31 , 2006 , 2005 and 2004 , respectively . the net loss for the year ended december 31 , 2006 is comprised net losses from asset sales and other impairments of $ 7.0 million , offset by gains from asset sales of $ 5.1 million . 2022 construction-in-progress impairment charges 2014for the years ended december 31 , 2006 , 2005 and 2004 , the company wrote-off approximately $ 1.0 million , $ 2.3 million and $ 4