Documentation
Codebook, version history, cautionary notes, and citation guidance for each release. All documents are PDF.
Codebook
Variable definitions
Defines every variable in the dataset, organized by category. Includes measurement protocols, coding rules, and source attribution for each column.
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What's New
Changes from v3.0
Documents the differences between this version and the previous one. Lists changes to electoral coverage, variables, and accompanying files.
Coming soon
Cautionary Notes
Methodological edge cases
Methodological decisions, source-data problems, and edge cases that may affect interpretation or distort user calculations. Read before computing aggregates.
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Suggested Citation
How to cite v4.0
Recommended citation format for the dataset and accompanying publication. Includes BibTeX entries and DOI links. Use when publishing research.
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Version History
| Version | Released | Observations | Variables | Coverage | Note |
|---|---|---|---|---|---|
| 4.0 | 2026-09 | 6,119 | 46 | 1989-2025 | 4 variables added |
| 3.0 | 2026-08 | 6,119 | 42 | 1989-2025 | 2024 + 2025 elections added |
| 2.0 | 2026-01 | 5,301 | 42 | 1989-2023 | Metadata-only release |
| 1.0 | 2025-11 | 5,301 | 42 | 1989-2023 | Initial release |