Population Clock

Population Clock

The Population Clock is the United States Census Bureau's continuously active approximations of both the population of the United States and the world's total population. The population totals are based on the latest census information and national population estimates, which are used in the algorithms that run the two clocks.

The calculation used to estimate the approximate timely population is

one birth per time "TW"
- one death per time "TX"
+ one international immigrant per time "TY"
= overall increase (one person per time "TZ").

For example,

one birth every 1 minute and 56 seconds
- one death every 3 minutes and 59 seconds
+ one international migrant every 3 minutes and 11 seconds
= one person every 1 minutes and 44 seconds

Links

* [http://www.abs.gov.au/ausstats/abs@.nsf/94713ad445ff1425ca25682000192af2/1647509ef7e25faaca2568a900154b63?OpenDocument Australian Bureau of Statistics population clock website]

* [http://www.stats.govt.nz/populationclock.htm Statistics New Zealand population clock website]

* [http://www.statcan.ca/english/edu/clock/population.htm Statistics Canada population clock website]

* [http://www.cbs.nl/en-GB/menu/themas/bevolking/cijfers/extra/bevolkingsteller.htm?languageswitch=on Statistics Nederlands population clock website]

* [http://www.stat.si/eng/preb_ura.asp Slovenia Statistics Office population clock website]

* [http://www.vaestorekisterikeskus.fi/vrk/home.nsf/pages/index_eng Finland Population Centre population clock website]

* [http://www.ssb.no/english/subjects/02/befolkning_en/ Statistics Norway population clock website]

* [http://www.census.gov/main/www/popclock.html US Population Clock website]


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