 In terms of national averages, I-M253 is found in 35–38 per cent of Swedish males, 32.8% of Danish males, about 31.5% of Norwegian males, and about 28% of Finnish males.Haplogroup I-M253 is a primary branch of haplogroup I* (I-M170), which has been present in Europe since ancient times.The other primary branch of I* is I-M438, also known as I2.