Very common (≥ 10%), common (≥ 1% and < 10%), uncommon (≥ 0.1% and < 1%), rare (≥ 0.01% and < 0.1%), very rare (< 0.01%), not known (cannot be estimated from the data available).
Väga sage( ≥ 10%), sage (≥ 1% ja < 10%), aeg- ajalt (≥ 0, 1% ja < 1%), harv (≥ 0, 01% ja < 0, 1%), väga harv (<  0, 01%) ja pole teada (ei ole võimalik hinnata olemasolevate andmete põhjal).