Radio 4 in Four - Is half the donated sperm in the UK from one man in Denmark? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - Is half the donated sperm in the UK from one man in Denmark? - ÃÛÑ¿´«Ã½ Sounds
Is half the donated sperm in the UK from one man in Denmark?
Reports claim that 50% of sperm imported to the UK is Danish, but is this true?