Data For 1925 Are For Forty-Seven States Plus Estimates For The Other Three States (Which Account For Only 2% Of The Total Registration). Data For 1926 Only Exclude Mississippi; Data For 1927 On Include All States. Data For 1941-1945 Exclude Deliveries To The Federal Government. Data For January 1959 On Include Alaska; Hawaii Included From January 1960 On. Source: Data For 1925-1950: U.S. Department Of Commerce, Survey Of Current Business, August 1933, P. 19 And Successive Issues. Data For 1951-1966: Automobile Manufacturers Association, Automobile Facts And Figures, 1951-1967 Issues.
This NBER data series m01109 appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.
NBER Indicator: m01109
Release: NBER Macrohistory Database
National Bureau of Economic Research, New Passenger Car Registrations for United States [M01109USM543NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M01109USM543NNBR/, August 30, 2015.