which 10 countries had the highest GDP per capita in 1913? without requiring the caller to pull the full panel and sort locally. Variable must be one of gdppc (GDP per capita in 2011 international dollars, PPP) or pop (population in thousands). Published under CC BY 4.0 by Bolt and van Zanden at the University of Groningen.x-api-key: ********************curl --location '/api/v1/research/maddison/top?variable=gdppc&year=2022&limit=10' \
--header 'x-api-key: <api-key>'{
"data": {
"variable": "gdppc",
"unit": "2011 international dollars (PPP)",
"year": 2022,
"limit": 10,
"ranking": [
{
"rank": 1,
"iso3": "string",
"country": "string",
"region": "string",
"region_slug": "string",
"value": 0
}
],
"count": 10
},
"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
}
}