the united states are the best of all in the states.
Demography requires data. The census provides this data.
A census is the gathering of data from an entire population.
The US Census is every 10 years.
Census
A census is a collection of demographic data for a given area
information on the census was collected by enternet or by ask, Google,answers.com
Census.
People who conduct a census are typically called census enumerators or census takers. They are responsible for collecting demographic data from households to provide accurate population statistics. In some contexts, they may also be referred to as surveyors or data collectors.
The U.S. Census Bureau conducts the national census in the United States. Other countries have their own official departments which collect census data.
census is conducted for group data so if it is a sampling data is taken it would lead to lot of non sampling errors
The next release of U.S. Census data is typically scheduled for specific intervals based on the type of data. The U.S. Census Bureau regularly releases updates, including annual estimates and other demographic data. For the most accurate and up-to-date information on upcoming releases, it is best to check the U.S. Census Bureau's official website or their release calendar.
demographics, census data