. this increase included a $ 13 million gain on the sale of property in spain as well as the increased contributions from the moroccan acquisition , parti- ally offset by higher energy costs . international paper distribution lim- ited , our asian box and containerboard business , had net sales for 2006 of $ 182 million . in 2005 , net sales were $ 104 million subsequent to international paper 2019s acquisition of a majority interest in august 2005