Frequency
Indicators  (1)    (2)    (3)    mean
    1        4     140    27     2.13
    2        5     126    34     2.18
    3        40    66     46     2.04
    4        5     108    57     2.31
    5        2     113    57     2.32

3 - fully implemented
2 - partially implemented
1 - not implemented