Unfilled Orders to Shipments Ratio Excludes Semiconductor Manufacturing. Also, the Ratio of Unfilled Orders to Shipments excludes the following industries with no unfilled orders: Wood products; nonmetallic mineral products; medical equipment and supplies; office supplies; other miscellaneous manufacturing; cutlery and handtools; farm and garden machinery; computer storage and peripheral devices; audio and video equipment; manufacturing and reproducing magnetic and optical media; batteries; automobiles; light trucks and utility vehicles; heavy duty trucks; and miscellaneous furniture.
Source: US. Bureau of the Census
US. Bureau of the Census, Ratio of Manufacturers' Total Inventories to Shipments for All Manufacturing Industries [UMTMUS], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/UMTMUS/, November 30, 2015.