Hi,
I was wondering if I could find historical online data from the CIA
World Factbook? The current data is excelent for now, but what about
data from previous years?

I am glad I was able to help you find what you needed. I've reposted
the link below.

"15 YEARS OF WORLD FACTS   
 From the USA CIA World Factbooks,   
 the United Nations Statistical Office, 
 The Library of Congress Country Studies 
 and other sources."

Theodora.org
http://www.theodora.com/wfb/abc_world_fact_book.html

Here is a similar site:

"10 YEARS OF WORLD FACTS   
 From the USA CIA World Factbooks,   
 the United Nations Statistical Office, 
 The Library of Congress Country Studies 
 and other sources."

Geographic.org
http://www.geographic.org/countries/

If you find the CIA World Factbook useful, you may want to take a look
at CountryWatch. This is a subscription service, but quite a bit of
information is available free of charge (use the pull-down menu for
'Country Information' near the top of the page to see the free data):

CountryWatch
http://www.countrywatch.com/

Here's a sample of the kind of info that CountryWatch offers (be sure
to scroll down to see all the information):

CountryWatch: Armenia
http://www.countrywatch.com/cw_country.asp?vCOUNTRY=8

I hope this is useful. If anything is unclear, or if a link doesn't
work for you, please request clarification; I'll be glad to offer
further assistance before you rate my answer.

Best regards,
pinkfreud

Does this help?

http://www.theodora.com/wfb/abc_world_fact_book.html

very much.
thanx a lot