func runMaxYears(gedcom1 *gedcom.Document, gedcom2 *gedcom.Document, idealScore int, options gedcom.SimilarityOptions, tuneFlags *TuneFlags) {
    for maxYears := tuneFlags.optionYearsMin; maxYears <= tuneFlags.optionYearsMax; maxYears += tuneFlags.optionYearsStep {
        options.MaxYears = maxYears

        runIndividualWeight(gedcom1, gedcom2, idealScore, options, tuneFlags)