{
  "jointCompleteYears": [
    2010,
    2011,
    2012,
    2013,
    2014,
    2015,
    2016,
    2017,
    2018,
    2019,
    2020,
    2021,
    2022,
    2023
  ],
  "calculations": [
    {
      "country": "JPN",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2023,
      "startValue": "35.9391724358064",
      "endValue": "38.6312383711286",
      "formula": "endValue - startValue",
      "difference": "2.6920659353222",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "JPN",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2023,
      "startValue": "82.91407928",
      "endValue": "85.00990295",
      "formula": "endValue - startValue",
      "difference": "2.09582367",
      "unit": "percentage points"
    },
    {
      "country": "JPN",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2024,
      "startValue": "82.91407928",
      "endValue": "85.54153081",
      "formula": "endValue - startValue",
      "difference": "2.62745153",
      "unit": "percentage points"
    },
    {
      "country": "LKA",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2023,
      "startValue": "10.5401488574725",
      "endValue": "8.76545173115153",
      "formula": "endValue - startValue",
      "difference": "-1.77469712632097",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "LKA",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2024,
      "startValue": "10.5401488574725",
      "endValue": "8.4682688580745",
      "formula": "endValue - startValue",
      "difference": "-2.0718799993980",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "LKA",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2023,
      "startValue": "44.45308724",
      "endValue": "51.2",
      "formula": "endValue - startValue",
      "difference": "6.74691276",
      "unit": "percentage points"
    },
    {
      "country": "LKA",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2024,
      "startValue": "44.45308724",
      "endValue": "54.59",
      "formula": "endValue - startValue",
      "difference": "10.13691276",
      "unit": "percentage points"
    },
    {
      "country": "USA",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2023,
      "startValue": "37.0074278936277",
      "endValue": "38.0939254696383",
      "formula": "endValue - startValue",
      "difference": "1.0864975760106",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "USA",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2024,
      "startValue": "37.0074278936277",
      "endValue": "38.8571729185246",
      "formula": "endValue - startValue",
      "difference": "1.8497450248969",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "USA",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2023,
      "startValue": "91.2684021",
      "endValue": "93.52559662",
      "formula": "endValue - startValue",
      "difference": "2.25719452",
      "unit": "percentage points"
    },
    {
      "country": "USA",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2024,
      "startValue": "91.2684021",
      "endValue": "94.69380188",
      "formula": "endValue - startValue",
      "difference": "3.42539978",
      "unit": "percentage points"
    },
    {
      "country": "DEU",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2023,
      "startValue": "44.0643361489671",
      "endValue": "45.380522509099",
      "formula": "endValue - startValue",
      "difference": "1.3161863601319",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "DEU",
      "indicator": "IT.NET.BBND.P2",
      "start": 2021,
      "end": 2024,
      "startValue": "44.0643361489671",
      "endValue": "45.6069242965787",
      "formula": "endValue - startValue",
      "difference": "1.5425881476116",
      "unit": "subscriptions per 100 people"
    },
    {
      "country": "DEU",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2023,
      "startValue": "91.43060973",
      "endValue": "92.4763763",
      "formula": "endValue - startValue",
      "difference": "1.04576657",
      "unit": "percentage points"
    },
    {
      "country": "DEU",
      "indicator": "IT.NET.USER.ZS",
      "start": 2021,
      "end": 2024,
      "startValue": "91.43060973",
      "endValue": "93.49999579",
      "formula": "endValue - startValue",
      "difference": "2.06938606",
      "unit": "percentage points"
    },
    {
      "source": "dcs-annual-2025",
      "year": "2023",
      "formula": "urban - estate",
      "leftValue": "66.9",
      "rightValue": "32.4",
      "difference": "34.5",
      "unit": "percentage points",
      "qualification": "Difference of rounded survey estimates; no significance test"
    },
    {
      "source": "dcs-annual-2025",
      "year": "2023",
      "formula": "age_20_24 - age_60_69",
      "leftValue": "87.2",
      "rightValue": "15.4",
      "difference": "71.8",
      "unit": "percentage points",
      "qualification": "Difference of rounded survey estimates; no significance test"
    },
    {
      "source": "dcs-annual-2025",
      "year": "2024",
      "formula": "urban - estate",
      "leftValue": "67.1",
      "rightValue": "37.7",
      "difference": "29.4",
      "unit": "percentage points",
      "qualification": "Difference of rounded survey estimates; no significance test"
    },
    {
      "source": "dcs-annual-2025",
      "year": "2024",
      "formula": "age_20_24 - age_60_69",
      "leftValue": "88.4",
      "rightValue": "17.8",
      "difference": "70.6",
      "unit": "percentage points",
      "qualification": "Difference of rounded survey estimates; no significance test"
    },
    {
      "source": "dcs-annual-2025",
      "year": "2025",
      "formula": "urban - estate",
      "leftValue": "74.7",
      "rightValue": "49.7",
      "difference": "25.0",
      "unit": "percentage points",
      "qualification": "Difference of rounded survey estimates; no significance test"
    },
    {
      "source": "dcs-annual-2025",
      "year": "2025",
      "formula": "age_20_24 - age_60_69",
      "leftValue": "91.6",
      "rightValue": "24.0",
      "difference": "67.6",
      "unit": "percentage points",
      "qualification": "Difference of rounded survey estimates; no significance test"
    },
    {
      "source": "trc-q2-2026",
      "start": "2021",
      "end": "2023",
      "startValue": "2684307",
      "endValue": "2556911",
      "difference": "-127396",
      "percentChange": "-4.745954914992957213910331418872729535035",
      "qualification": "National regulator count; not spliced into WDI density; no customer-transition inference"
    },
    {
      "source": "japan-household-connections",
      "formula": "max(0, fixedPercent + mobilePercent - 100)",
      "fixedPercent": "76.6",
      "mobilePercent": "71.5",
      "lowerBoundFromRoundedMarginals": "48.1",
      "roundingAwareConservativeLowerBound": "48.0",
      "unit": "percent of past-year user households",
      "qualification": "Same weighted conditional population; two marginal categories overlap. Bound, not observed cross-tabulation or causal substitution estimate. Conservative bound assumes conventional nearest-0.1 rounding; prose says at least about 48%."
    }
  ],
  "excludedCalculations": [
    "Composite digital-access score",
    "Fixed-density minus internet-use level",
    "Cross-country inequality ranking",
    "Causal mobile substitution estimate"
  ]
}