NASS GES Codebooks
1997 NASS General Estimates System (GES) Codebook. Version 20Jul98. UMTRI Transportation Data Center. November 1998.
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The NASS GES Version 20Jul98 data sets for calendar year 1997 document 55,562 accidents, involving 142,366 occupants in 100,032 vehicles, and 3,524 nonmotorists.