七、纸及纸板生产布局与集中度根据中国造纸协会调查资料,2012年我国东部地区12个省(区、市),纸及纸板产量占全国纸及纸板产量比例为75.4%,比上年提高3.7个百分点;中部地区9个省(区)比例占18.4%,比上年降低2.0个百分点;西部地区10个省(区、市)比例占6.2%,比上年降低1.7 VII. Layout and Concentration of Paper and Paperboard Production According to the survey data of China Papermaking Association, in 2012, the output of paper and paperboard in the 12 provinces (autonomous regions and municipalities) in the eastern region of China accounted for 75.4% of the national paper and paperboard output, up from the previous year 3.7 percentage points; the proportion of nine provinces (autonomous regions) in the central region accounted for 18.4%, down 2.0 percentage points over the previous year; the proportion of 10 provinces (autonomous regions and municipalities) in the western region accounted for 6.2%, down 1.7