Not all information for your research will be found though a library database. There are many web resources that can be very helpful in conducting research.
Below is a list of great web resources to help you with your projects.
As always, reach out to me if you have any questions.
Global information and statistics from the United Nations on countries, energy, world health, agriculture, industry, trade, refugees, and much more. Content: Full-text (mostly statistical tables). Publisher: United Nations Statistics Division. Coverage: Copyright 2008.
Free resource.
Demographic's Data is an vital to Anthropological and Sociological research. The United States Government makes this data readily available online. Below are links to the US Census Bureau and the US Bureau of Labor Statistics.
For information outside of the US, foreign governments often keep similar publicly available statistics data online for you to analyze it is simply a matter of going to that government's websites.
There is a much more comprehensive list of places to find statistical data under the Statistics tab.