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January 13, 2023
In some statistical tables in Woods & Poole publications, data are presented for the average annual rate of growth for a particular variable over a specified time period. The average annual rate of growth is the compounded growth of a variable over time. Thus, a 3.0% average annual rate of growth between 1970 and 1980 for population would mean that, on average, the population increased 3.0% each year between 1970 and 1980. An average annual rate of growth can be calculated by dividing the data year t+n by data year t and calculating the nth root of the quotient (where n is the number of years between t and t+n). Subtract one and multiply by 100 to convert the growth into percent. A negative average annual rate of growth would mean a decline in the variable over time.
For some variables, data are rounded in the Woods & Poole database. Data for the U.S., states, […]
January 13, 2023
In some statistical tables in Woods & Poole publications, data are presented for the […]
December 6, 2022
The county definitions and county-equivalent definitions used in the Woods & Poole database are […]
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