Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Number of Trucks, Not Seasonally Adjusted

Frequency:  Annual

All Figures Are As Of December 31. The Figure For 1944 Has Been Estimated. Source: U.S. Bureau Of Public Roads, Data For 1904-1939: National Automobile Chamber Of Commerce, "Facts And Figures Of The Automobile Industry", 1933, P. 10; 1939, P. 16; 1943, P. 48. Data For 1940-1944: Public Roads Administration, "Comparison Of Motor Vehicle Registrations, 1940-1944".

This NBER data series a01145 appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.

NBER Indicator: a01145