Meget almindelig (≥1/ 10); almindelig (≥ 1/ 100, < 1/ 10); usædvanlig (≥1/ 1, 000, < 1/ 100); sjælden (≥1/ 10, 000, < 1/ 1, 000); meget sjælden (< 1/ 10, 000).
Very common (≥ 1/ 10); common (≥ 1/ 100, < 1/ 10); uncommon (≥ 1/ 1,000, < 1/ 100); rare (≥ 1/ 10,000, < 1/ 1,000); very rare (< 1/ 10,000).