מדד המחירים לצרכן — למ"ס

import pandas as pd

cpi = pd.read_csv("cpi_general.csv", parse_dates=["date"], index_col="date")

start_cpi = cpi.loc["2020-01-01", "value"]
end_cpi   = cpi.loc["2024-01-01", "value"]
inflation_4y = (end_cpi / start_cpi - 1) * 100
print(f"אינפלציה מצטברת 2020-2024: {inflation_4y:.2f}%")

[
  {
    "date": "2024-01",
    "value": 104.3
  },
  {
    "date": "2024-02",
    "value": 104.5
  },
  {
    "date": "2024-03",
    "value": 104.8
  }
]