{
  "dataset": "Global Import-Export HS2 Profile Series (1995-2024)",
  "description": "Annual HS2 trade values and growth, with measures of exporter and importer concentration and trade volatility for each broad product category.",
  "coverage": "1995-2024 annual observations where available",
  "rowMeaning": "one year and one HS2 product category",
  "includes": [
    "Annual global trade value and growth",
    "Exporter and importer concentration indexes",
    "Trade volatility score"
  ],
  "metricDefinitions": [
    "HS2 is a two-digit Harmonized System product group.",
    "HHI summarizes concentration; higher values indicate activity is concentrated among fewer participants.",
    "Year-over-year growth compares a value with the previous year; a negative percentage indicates a decline.",
    "Fields marked USD are monetary values denominated in US dollars.",
    "Values ending in pct are percentages."
  ],
  "columns": [
    "year",
    "hs2",
    "global_trade_usd",
    "yoy_growth_pct",
    "exporter_concentration_hhi",
    "importer_concentration_hhi",
    "volatility_score"
  ],
  "columnTypes": {
    "year": "uint16",
    "hs2": "string",
    "global_trade_usd": "float64",
    "yoy_growth_pct": "float64",
    "exporter_concentration_hhi": "float64",
    "importer_concentration_hhi": "float64",
    "volatility_score": "float64"
  },
  "rows": [
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      "year": 1995,
      "hs2": "01",
      "global_trade_usd": 9374444923.481909,
      "yoy_growth_pct": null,
      "exporter_concentration_hhi": 2006.5419869246753,
      "importer_concentration_hhi": 1648.6260031970064,
      "volatility_score": 0
    },
    {
      "year": 1995,
      "hs2": "02",
      "global_trade_usd": 37262341259.26792,
      "yoy_growth_pct": null,
      "exporter_concentration_hhi": 2670.8764876163546,
      "importer_concentration_hhi": 2206.0026951743657,
      "volatility_score": 0
    },
    {
      "year": 1995,
      "hs2": "03",
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      "yoy_growth_pct": null,
      "exporter_concentration_hhi": 2212.76207598466,
      "importer_concentration_hhi": 2640.0175071890153,
      "volatility_score": 0
    },
    {
      "year": 1995,
      "hs2": "04",
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      "yoy_growth_pct": null,
      "exporter_concentration_hhi": 1759.3577084240592,
      "importer_concentration_hhi": 1171.3690137813758,
      "volatility_score": 0
    },
    {
      "year": 1995,
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      "importer_concentration_hhi": 1516.8255507929716,
      "volatility_score": 0
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