File:US demographic composition population pyramid.gif

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Original file (900 × 720 pixels, file size: 5.32 MB, MIME type: image/gif, looped, 121 frames, 26 s)

Captions

Captions

US demographic composition population pyramid

Summary

[edit]
Description
English: Stitched together from multiple U.S. Census Bureau tables. With NCHS data for the infant mortality rate since I wanted each year to start with total amount of children born in a cohort, so that the lowest bar actually represents all births, and the drop represents all infant mortality.

The U.S. Census Bureau data was gathered through multiple sources depending on time and type of data.

Infant mortality rate:

  1. US National Vital Statistics System https://i.imgur.com/Ebah18w.png

Population total:

  1. 1900-1932 National Intercensal Tables: https://www.census.gov/data/tables/time-series/demo/popest/pre-1980-national.html
  2. 1933-2020 U.S. Census Bureau July 1st data, provided by Human Mortality Database: https://www.mortality.org

Race data:

  1. 1900-1979 National Intercensal Tables: https://www.census.gov/data/tables/time-series/demo/popest/pre-1980-national.html
  2. National Intercensal Datasets: 1980-1990: https://www.census.gov/data/datasets/time-series/demo/popest/1980s-national.html (linearly interpolated Hispanic data for this decade due to source Census Bureau data temporarily using a different definition of Hispanic than the other datasets)
  3. 1990-2000 Bridged-Race Population Estimates 1990-2020 - Provided by CDC https://wonder.cdc.gov/bridged-race-population.html
  4. National Intercensal Datasets: 2000-2010: https://www.census.gov/data/datasets/time-series/demo/popest/intercensal-2000-2010-national.html
  5. National Population by Characteristics: 2010-2019: https://www.census.gov/data/datasets/time-series/demo/popest/2010s-national-detail.html

Notes:

  1. The data has been interpolated between census years before 1990.
  2. Race is self identified.
  3. Hispanic is exclusive of other categories.
  4. A 5th-degree polynomial fit has been applied at a cohort level after 1960 as smoothening.
  5. It was not possible to answer with multiple races before the 2000 census. Yet I've interpolated the race data linearly from the 1990 census, therefore it shows up slowly over the decade.
  6. The infant mortality rate for other categories than white and black where assumed to follow the average. This is not a fully reasonable assumption. But the effect should be way too small to be visible in this chart.
Date
Source Own work, see description for source
Author Kaj Tallungs

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Date/TimeThumbnailDimensionsUserComment
current07:33, 2 January 2023Thumbnail for version as of 07:33, 2 January 2023900 × 720 (5.32 MB)Tallungs (talk | contribs)Higher resolution
04:08, 30 August 2022Thumbnail for version as of 04:08, 30 August 2022450 × 360 (1.88 MB)Tallungs (talk | contribs)Uploaded own work with UploadWizard

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