{ "schemaVersion": 1, "source": { "name": "SSA via FiveThirtyEight", "startYear": 2000, "endYear": 2014, "revision": "4c1ff5e3aef1816ae04af63218015066e186c147", "sha256": "67ed396cecc999664a737ee75f287cf3472e24c3257fcca795b672579f0ed910", "url": "https://raw.githubusercontent.com/fivethirtyeight/data/4c1ff5e3aef1816ae04af63218015066e186c147/births/US_births_2000-2014_SSA.csv" }, "methods": { "rawRank": "Competition rank by recorded births; tied winners retained.", "leapDay": "Only actual February 29 observations; no zero rows in non-leap years.", "sensitivity": "Daily births divided by the mean for that weekday within the same year; aggregate sensitivity is the mean of these ratios per month/day. Descriptive, not causal adjustment." }, "totalBirths": 62187024, "observedDays": 5479, "aggregate": { "winners": [ { "key": "09-12", "births": 191024, "occurrences": 15, "rank": 1, "share": 0.0030717662257000755, "oneIn": 325.5456068347433, "rarerThan": 0, "moreCommonThan": 100, "birthsPerOccurrence": 12734.933333333332, "normalizedMeanRatio": 1.0935465174240273, "perOccurrenceRank": 1, "normalizedRank": 5 } ], "perOccurrenceWinners": [ { "key": "09-12", "births": 191024, "occurrences": 15, "rank": 1, "share": 0.0030717662257000755, "oneIn": 325.5456068347433, "rarerThan": 0, "moreCommonThan": 100, "birthsPerOccurrence": 12734.933333333332, "normalizedMeanRatio": 1.0935465174240273, "perOccurrenceRank": 1, "normalizedRank": 5 } ], "normalizedWinners": [ { "key": "09-10", "births": 186668, "occurrences": 15, "rank": 5, "share": 0.003001719458387332, "oneIn": 333.1423918400583, "rarerThan": 1.095890410958904, "moreCommonThan": 98.9041095890411, "birthsPerOccurrence": 12444.533333333333, 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