def is_data_value_ascending(dataset):
    """Checks if the data is ascending."""
    ascending = True
    starting_abscissa = list(dataset[0].items())[0][1]
    last_abscissa = starting_abscissa
    for item in dataset[1:]:
        current_abscisssa = list(item.items())[0]
        if current_abscisssa[1] <= last_abscissa:
            ascending = False
        last_abscissa = current_abscisssa[1]
    return ascending
