The proportion of domestic log production classified for lumber, pulp, and plywood is just over 50%, about 20%, and about 20%, respectively, with lumber production accounting for the majority. The majority of lumber products are manufactured using domestic softwood, and there are also lumber imports from North American and European countries. In addition imports of logs and plywood produced in tropical countries have been decreasing significantly, especially since the 2000s, and the volume of domestic softwood logs consumed for plywood has been increasing. Furthermore, paper is manufactured mainly from wood chips imported from overseas. Wood chips for papermaking have been imported mainly from Australia since the 1990s, but imports from Southeast Asia have increased over the last decade or so.