curl --request GET \
  --url https://api.example.com/api/trade/v1/get-tariff-trends

{
  "datapoints": [
    {
      "reportingCountry": "<string>",
      "partnerCountry": "<string>",
      "productSector": "<string>",
      "year": 123,
      "tariffRate": 123,
      "boundRate": 123,
      "indicatorCode": "<string>"
    }
  ],
  "fetchedAt": "<string>",
  "upstreamUnavailable": true,
  "effectiveTariffRate": {
    "sourceName": "<string>",
    "sourceUrl": "<string>",
    "observationPeriod": "<string>",
    "updatedAt": "<string>",
    "tariffRate": 123
  }
}