Title:               White to Non-White Racial Dissimilarity (5-year estimate) Index for Rockingham County, NH
Series ID:           RACEDISPARITY033015
Source:              U.S. Census Bureau
Release:             Racial Dissimilarity Index (Not a Press Release)
Seasonal Adjustment: Not Seasonally Adjusted
Frequency:           Annual
Units:               Percent
Date Range:          2009-01-01 to 2022-01-01
Last Updated:        2023-12-07 10:44 AM CST
Notes:               The Racial Dissimilarity Index measures the percentage of the
                     non-hispanic white population in a county which would have to change
                     Census tracts to equalize the racial distribution between white and
                     non-white population groups across all tracts in the county.
                     
                     Starting with the 2016 observations, the calculation has been changed
                     so that counties with only one census tract have missing data. Zero
                     values represent counties where the proportions of non-white
                     population and non-hispanic white population are the same. Multiyear
                     estimates from the American Community Survey (ACS) are "period"
                     estimates derived from a data sample collected over a period of time,
                     as opposed to "point-in-time" estimates such as those from past
                     decennial censuses. ACS 5-year estimate includes data collected over a
                     60-month period. The date of the data is the end of the 5-year period.
                     For example, a value dated 2014 represents data from 2010 to 2014.
                     However, they do not describe any specific day, month, or year within
                     that time period.
                     
                     Multiyear estimates require some considerations that single-year
                     estimates do not. For example, multiyear estimates released in
                     consecutive years consist mostly of overlapping years and shared data.
                     The 2010–2014 ACS 5-year estimates share sample data from 2011
                     through 2014 with the 2011–2015 ACS 5-year estimates. Because of
                     this overlap, users should use extreme caution in making comparisons
                     with consecutive years of multiyear estimates.
                     
                     Please see "Section 3: Understanding and Using ACS Single-Year and
                     Multiyear Estimates" on publication page 13 (file page 19) of the 2018
                     ACS General Handbook
                     (https://www.census.gov/content/dam/Census/library/publications/2018/acs/acs_general_handbook_2018.pdf)
                     for a more thorough clarification.

DATE                     VALUE
2009-01-01  30.439023417911816
2010-01-01  29.894428253337367
2011-01-01  31.314147252146903
2012-01-01  34.056352923732130
2013-01-01  34.085427826650296
2014-01-01  33.520758999537065
2015-01-01  29.299060771114910
2016-01-01  27.682848739768296
2017-01-01  26.571350687526607
2018-01-01  28.128212313589410
2019-01-01  30.586147157087368
2020-01-01  31.369158522725805
2021-01-01  30.503671941795790
2022-01-01  32.218958129936716