Among other changes, new 1 992 definitions affect the boundaries of about a third of all metropolitan areas. ... HISTORICAL INFORMATION The economic census has been taken as an integrated program at 5-year intervals since 1 967 and before that for 1963, 1958, and 1954. ... results appearing in publication series such as Current Business Reports (retail and wholesale trade and service industries), anbsp;...
|Title||:||1992 Census of Transportation|