F/E

Frequency

Exposition

5

One or more times per day. Happens “all the time”.

work time >90%

4

One or more times a week. Everyone remember this kind of event/situation.

50%< work time ≤90%

3

One or more times per month. Some people remember this type of event/situation.

25%< work time ≤50%

2

One or more times per year. Someone remembers this type of event/situation.

5%< work time ≤25%

1

Less than once a year. No memory of this type of event/situation.

work time ≤5%