def build_month_increments(start, stop):
    """ Build all monthly increments from the start year to stop year in the
    format YEAR-MONTH

    Args:
        start (int): start year of increments
        stop (int): end year of increments

    Returns:
        list: list of strings holding the YEAR-MONTH increments
    """
    months = []
    while start <= stop:
        for month in [
                "01", "02", "03", "04", "05", "06", "07", "08", "09", "10",
                "11", "12"
        ]:
            months.append(str(start) + "-" + month)
        start += 1

    return months