Description

VERSIONHIK identifies the public release version of the HIK values for each census year.

HIK is a universal identifier key used to track individuals across historical censuses. HIKs are the product of a complex linking process developed by the Multigenerational Longitudinal Panel (MLP) project. The MLP project and a description of the linking process are described at the Multigenerational Longitudinal Panel home page.

The historical full count data files and the MLP links are not typically updated in tandem. VERSIONHIK records the full provenance of each iteration of the HIKs. It combines the version of the underlying historical full count data file (VERSIONHIST) and the MLP version that generated the HIKs. For example, a VERSIONHIK value of "1.0-2.0" indicates that the public release version of the historical full count file is "1.0" and the public release version of the HIKs (MLP) is "2.0".

Codes

This variable is not available for any of the currently selected samples.

Comparability

This variable is comparable across all available datasets.

IPUMS is continually working to improve the MLP linking method and makes periodic updates to the data incorporating new data sources and techniques. The MLP Version History page has a complete description of each version of the MLP links.

Universe

Availability

• 2023: --
• 2022: --
• 2021: --
• 2020: --
• 2019: --
• 2018: --
• 2017: --
• 2016: --
• 2015: --
• 2014: --
• 2013: --
• 2012: --
• 2011: --
• 2010: --
• 2009: --
• 2008: --
• 2007: --
• 2006: --
• 2005: --
• 2004: --
• 2003: --
• 2002: --
• 2001: --
• 2000: --
• 1990: --
• 1980: --
• 1970: --
• 1960: --
• 1950: 100%
• 1940: 100%
• 1930: 100%
• 1920: 100%
• 1910: 100%
• 1900: 100%
• 1880: 100%
• 1870: 100%
• 1860: 100%
• 1850: 100%

• 2023: --
• 2022: --
• 2021: --
• 2020: --
• 2019: --
• 2018: --
• 2017: --
• 2016: --
• 2015: --
• 2014: --
• 2013: --
• 2012: --
• 2011: --
• 2010: --
• 2009: --
• 2008: --
• 2007: --
• 2006: --
• 2005: --
• 2000: --
• 1990: --
• 1980: --
• 1970: --
• 1930: --
• 1920: --
• 1910: --

Flags

Editing Procedure

There is no editing procedure available for this variable.