2002 and earlier Economic Censuses
The economic census is conducted every 5 years. The button at the right provides links to all tables for this industry from the 2002 Economic Census in the American FactFinder (AFF) system. For earlier statistics, see the discussion in historical data from the economic census.
Historical comparability
NAICS 42511, Business to business electronic markets, is comparable between 2007 and 2002.
2002 NAICS
42511, Business to business electronic markets,
has no direct counterpart in 1997 NAICS.
See the Bridge Between 2002 NAICS and 1997 NAICS for changes to constituent
industries.
In comparisons with data before 1997, 1997 NAICS is comparable to SIC . See the Bridge Between 1997 NAICS and 1987 SIC.
Comparable statistics are not available between 1997 and 2002.

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