The Durable Goods Components Of This Series Are Partly Unpublished. In Computing The Ratio, The Value Of Shipment Of Those Durable Goods Industries (Metal Containers; Wooden Containers; Metal Cans, Barrels, And Drums; And Motor Vehicle Assembly Operations) Which Have No Unfilled Orders Backlogs, Was Subtracted From The Value Of Total Durable Shipments. Source: Business Cycle Developments, September 1968
This NBER data series m06063 appears on the NBER website in Chapter 6 at http://www.nber.org/databases/macrohistory/contents/chapter06.html.
NBER Indicator: m06063
Release: NBER Macrohistory Database
National Bureau of Economic Research, Ratio of Unfilled Orders To Shipments, Manufacturers of Durable Goods for United States [M06063USM163SNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M06063USM163SNBR, February 13, 2016.