Where can I find the statistics on the total amount of customs duties 
(tariffs) collected by the US? Either the monetary amount or the amount as a 
percentage of imports will do.

Dear harijs,

According to the U.S. International Trade Commission (USITC) the 
total “calculated duties,” for “All Import Commodities” in the U.S. for 2001 
were 18,618,806,070.  This information has “been compiled from tariff and trade 
data from the U.S. Department of Commerce, the U.S. Treasury, and the U.S. 
International Trade Commission.”

http://dataweb.usitc.gov/scripts/REPORT.asp

Please note, that to get to this link you will need to register on the USITC 
website and fill out a Query form on the trade database.  Registration and use 
is free.  By registering you will have access to the USITC trade database, 
which allows you to retrieve trade statistics according to a wide range of 
variables (i.e. domestic imports, calculated duties, import charges, etc.).  
The “create a new user account” on the USITC website can be reached at, 

http://dataweb.usitc.gov/scripts/user_set.asp


The query details I used to get the above number are as follows:

List: All Import Commodities

Country Name: All Countries

Display Data Field: Calculated Duties

Aggregation Level: HTS0

Display Description: No

Time Line: Annual


Additional Websites that may interest you: 

U.S. International Trade Commission Website – provides information on U.S. 
trade (import and export).

http://dataweb.usitc.gov/ 

World Bank - general tariff data

http://www.worldbank.org/data/wdi2001/pdfs/tab6_6.pdf


Free Trade Agreement of the Americas (FTAA) – hemispheric trade and tariff 
database

http://alca-ftaa.iadb.org/eng/NGMADB_E.HTM


Search Terms Used: 
USITC

I hope this information is helpful to you.  Good Luck!


Cheers,
Shal

Thanks, that was just what I needed.
And especially thanks to gribz-ga, those statistics are great!

http://www.usitc.gov/ave.pdf

Information is Free :-)