Statistical Abstract of the United States. Start here for all your domestic statistical needs. I suggest you use the index to find the char(s) you need, keeping in mind that the numbers listed there are chart numbers, not page numbers. Need more detail? Use the URL in the source which is listed below each chart. The book is located behind the reference desk, and it's avialable online as well.
British Historical Statistics REF HA1134 .M58 1988
International Historical Statistics: Africa, Asia & Oceania, 1750-1993 REF HA4675. M55 1998
International Historical Statistics: Europe, 1750-2005 REF HA1107 .M5 2007
OECD Health Data
Covers health-related data for member OECD nations
World Bank - Global Development Finance
Presents data, by country, for national finances, total debt, debt service, etc.
World Bank - World Development Indicators
Presents data, by country, for balance of payments, national accounts, social indicators and more.