NOTES

Title	Release Dates

Passenger Car-Miles Per Train-Mile, Class I Railroads for United States	2005-08-01	2005-08-01

Source

National Bureau of Economic Research	2005-08-01	2005-08-01

Release

NBER Macrohistory Database	2005-08-01	2005-08-01

Units

Car-Miles per Train-Mile	2005-08-01	2005-08-01

Frequency

Monthly	2005-08-01	2005-08-01

Seasonal Adjustment

Not Seasonally Adjusted	2005-08-01	2005-08-01

Notes

Series Is Presented Here As Two Variables--(1)--Original Data, 1920-1930 (2)--Original Data, 1930-1943 Coverage Includes Motor-Car Train-Miles Not Previously Reported. Source: NBER Derived Data By Dividing Series (Passenger Car-Miles) By (Passenger Train-Miles). This NBER data series m03061b appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html. NBER Indicator: m03061b	2005-08-01	2005-08-01

Passenger Car-Miles Per Train-Mile, Class I Railroads for United States (M0361BUSM257NNBR)