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 ?
These results are expected given the current status of the climate models; however, the thing worth noting is that the model data can be used for the projection period, an important point for climate change impact studies in understanding changes in wet and dry spells in the future relative to the model base period.
O'Donoghue said that the TIMI study group was brought in by Merck for a "second perspective," to add rigor to an examination of events that had not been anticipated in the base period of the LOFT study.
Novavax and Biomedical Advanced Research and Development Authority have agreed to amend the contract to allow Novavax to continue to evaluate the remainder of the USD97m in base period funding until September 2014.
As noted in the "Facts and Background" section, many factors had to be considered before selecting the appropriate base period to project financial operations during the period of restoration.
Their findings revealed that extremely hot summers-those with temperatures three standard deviations greater than the mean temperature in the base period-occurred much more frequently in the past several years than during the base period, when they were practically absent.
The base period of CH2M HILL's contract is currently valued at about $3.7 billion, including $1.3 billion in American Recovery and Reinvestment Act funding that DOE provided since 2009.
has a one-year base period, two one-year options and is valued at US$25 million if all options are exercised.
In addition, with exception of psychiatric hospitals, those qualifying hospitals with more than 50 Title XXI admissions in the catastrophic relief payments base period will receive $1,750,000.
The contract has a one year base period of performance, three one-year options and a contract value of more than $11 million if all options are exercised.
The contract consists of a five-year base period worth $6.9 million and five option years worth $8.8 million.
The dividend cannot exceed the excess of all dividends received during the tax year from the controlled foreign company over the annual average for the base period years of 1) dividends received during each base-period year from the controlled foreign company; 2) amounts included in the U.S.