Three inflation episodes, 13 currencies, 1913-2025 - code and data
Eco3min Research, https://eco3min.fr/en/inflation-episodes-currencies/

Run: python src/pipeline.py   (Python 3, numpy, pandas) -> out/*.csv and out/run_info.json
     python src/test_za_ie_1922.py   -> out/robustness_za_ie_1922.csv (South Africa and Ireland from 1922)
The method is frozen in PREREGISTRATION.md; every later change is dated in CHANGELOG.md.

Input series (data/):
- us_bls_monthly.csv: US Bureau of Labor Statistics, CPI-U, series CUUR0000SA0, not seasonally adjusted (public domain).
- bis_long_cpi_annual.csv: Bank for International Settlements, long series on consumer prices (WS_LONG_CPI), annual.
  Source: BIS. https://data.bis.org/topics/CPI
- national/ita.csv: ISTAT, coefficients for converting monetary values 1861-2025 (CC BY 4.0), Italy 1913-46.
- national/aus.csv: Australian Bureau of Statistics, Year Book Australia 2003, table 28.4 (CC BY 4.0), Australia 1913-21.
- national/che.csv: Swiss Federal Statistical Office, long series of the consumer price index (OPEN-BY), Switzerland 1914-20.
Reuse each series under its source's terms, citing the source.
