# External reference data | File | Source | Use | |---|---|---| | `SDA.gpkg` (148 MB, not committed) + `SDA_SOURCE.md` | MRNF Découpages administratifs 1:20 000, V2026-07, CC-BY 4.0, https://www.donneesquebec.ca/recherche/dataset/decoupages-administratifs | municipality / MRC / region / metropolitan community / borough polygons | | `MUN.csv`, `MRC.csv` | MAMH Répertoire des municipalités (2026) | population, designation, constitution dates, official names | | `external_indices/` | Teranet–National Bank HPI, CREA MLS HPI, Statistics Canada NHPI/RPPI (downloaded 2026-10-21, see its README) | external comparison (`scripts/62_external.py`) |