National governments often mandate the keeping of statistics and task agencies with this duty. The data collected often change over the years, statistics may not always be published, and raw data and data sets are not always accessible. Additionally, data may be only available in print format only.
About Subject Headings
The best strategy for finding statistics is to do a thorough search of the agencies' publications both print and online. Search the Cornell Catalog by publisher or, alternately, do a "Subject Heading" search:
- [country name] - statistics; Example: Nicaragua statistics
- [country name] - statistics, vital
- [country name] - census
- Cuba--Economic conditions--1959-1990--Statistics