Regional GDP per capita and population for all 8 Maddison regions

GET

/api/v1/research/maddison/regional

Last modified:2026-05-10 09:22:39

Maintainer:Not configured

OperationId:research_maddison_regional

Returns Maddison Project regional aggregates: GDP per capita in 2011 international dollars (PPP) and population in thousands of people for each of the 8 analytical regions (East Asia, Eastern Europe, Latin America, Middle East and North Africa, South and South East Asia, Sub-Saharan Africa, Western Europe, Western Offshoots). Use the region= query to restrict the response to a single region. The Maddison groups the US, Canada, Australia, and New Zealand into Western Offshoots; north-america is accepted as an alias for that bloc. Regional GDP per capita is a population-weighted average of member country values. Cells are null where not every member country reports for that year. Pre-1950 observations follow the Maddison milestone grid; annual from 1950 through 2022. Published under CC BY 4.0 by Bolt and van Zanden at the University of Groningen.

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Dart

curl --location '/api/v1/research/maddison/regional?region=western-europe&start_year=1820&end_year=2022' \
--header 'x-api-key: <api-key>'

Responses

🟢200

application/json

One block per region with year-ordered gdppc and pop observations.

Bodyapplication/json

Example

{
    "data": {
        "regions": [
            {
                "region": "Western Europe",
                "region_slug": "western-europe",
                "observations": [
                    {
                        "year": 2022,
                        "gdppc": 0,
                        "pop": 0
                    }
                ],
                "count": 78
            }
        ],
        "region_count": 8,
        "start_year": 0,
        "end_year": 0
    },
    "meta": {
        "endpoint": "/api/v1/fred/us/cpi",
        "data_time": "2026-04-16T14:30:00Z",
        "response_time": "2026-04-16T14:30:12Z",
        "provider": "Sugra API v1.0.1",
        "source": "string",
        "fallback_used": true,
        "fallback_chain": [
            "string"
        ],
        "cached": true
    }
}

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Modified at 2026-05-10 09:22:39

World GDP per capita and population aggregate time series

Variable dictionary, methodology, and citation policy