@classmethod
def _create_all_bits(cls, figure, data_by_year, shifts, bits):
    """Totall used bits by shift and bits in rock."""
    all_bits = figure.add_subplot(222)
    all_bits.plot(data_by_year[shifts[0]].month, bits[0], marker='D',
        markersize=4)
    all_bits.plot(data_by_year[shifts[1]].month, bits[1], marker='D',
        markersize=4)
    all_bits.plot(data_by_year[shifts[0]].month, data_by_year[shifts[0]].
        bits_in_rock, marker='D', markersize=4)
    all_bits.plot(data_by_year[shifts[1]].month, data_by_year[shifts[1]].
        bits_in_rock, marker='D', markersize=4)
    all_bits.legend(['коронки, см.1', 'коронки, см.2',
        'коронки в скале, см.1', 'коронки в скале, см.2'])
    all_bits.set_ylabel('количество, шт')
    all_bits.grid(b=True, linestyle='--', linewidth=0.5)
    all_bits.set_title('Истрачено коронок.')
