base period

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base period

[′bās ‚pir·ē·əd]
(statistics)
The period of a year, or other unit of time, used as a reference in constructing an index number. Also known as base year.
References in periodicals archive ?
It is not widely appreciated, especially outside the climate science community, that the choice of reference period has important consequences for conclusions about such basic questions, such as: are climate model simulations of the past consistent with observations and what do climate models predict for the future?
The surviving companies are formed into a portfolio and equity market capitalization at the beginning and end of the reference period is the market valuation variable.
We are very pleased with the decision which has clarified the legal position in relation to how to interpret whether or not production was adversely affected during the reference period for the purposes of establishing the allocation of single payment scheme entitlements.
Mr Jones said 80% of farmers who were paid subsidies during the reference period should receive their yellow pack before July 19.
Many of the songs lovingly reference period classics, from the infectious opening number, "Good Morning, Baltimore" (which echoes the Ronettes' "Be My Baby") to the anthemic finale, "You Can't Stop the Beat" (which pays tribute to Ike and Tina Turner's "River Deep, Mountain High").
In the Current Employment Statistics survey of establishments, the reference period is the pay period including the 12th of the month.
The pay reference period is set at a maximum of one calender month but in many cases will be a week.
the hours of non-hours work worked by a worker in a pay reference period shall be the total of the number of hours spent by him during the pay reference period in carrying out the duties required of him under his contract to do non-hours work.
5 [degrees] C for the reference period 1961 through 1990, says Karl.
18 months after the reference period covered by this report.
The average provincial inflation rate in Leyte is generally higher than the regional average since March 2016 except in November until the reference period.

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