Export Table B–5c,,,,,,,
Estimated Standard Error of Percentage for Export Shipment Characteristics by Commodity Group: Percent of Total for 2002 and 1997,,,,,,,
"[Estimates are shown as percents and are based on data from the 2002 and 1997 Commodity Flow Surveys]
",,,,,,,
SCTG code,Description,Value,,Tons,,,
,, Std. error of percent 2002 , Std. error of percent 1997 , Std. error of percent 2002 , Std. error of percent 1997 ,,
—,All Commodities,—,—,—,—,,
01–05,Agriculture products and fish,0.9,0.8,3.9,3.1,,
06–09,"Grains, alcohol, and tobacco products",0.3,0.2,0.6,0.5,,
10–14,"Stones, non—metallic minerals, and metallic ores.",0.1,—,1.9,0.8,,
15–19,Coal and petroleum products,0.3,0.2,2.7,0.8,,
20–24,Pharmaceutical and chemical products,0.9,2.5,1.6,3.3,,
25–30,"Logs, wood products, and textile and leather",0.5,0.4,0.8,1.4,,
31–34,Base metal and machinery,1.3,0.7,1.0,0.9,,
35–38,"Electronic, motorized vehicles, and precision instruments",2.2,2.6,0.6,0.3,,
39–43,"Furniture, mixed freight and misc. manufactured products",0.6,0.5,0.5,0.9,,
—,Commodity Unknown,0.1,0.3,S,0.1,,
"
KEY: 
— Represents an estimate equal to zero or less than 1 unit of measure.
S Estimate does not meet publication standards because of high sampling variability or poor response quality.",,,,,,,,
"NOTE: The Introduction and appendixes give information on confidentiality protection, sampling error, nonsampling error, sample design, and definitions. Links to this information on the Internet may be found at www.census.gov/cfs.",,,,,,,,
"SOURCE:  Research and Innovative Technologies Administration, Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Export Data, March 2005.",,,,,,,,