One of the alleles of the gene has an 80% occurrence rate in Eurasian populations.[53][54] The ASIP gene has a 75–80% variation rate among Eurasian populations compared to 20–25% in African populations.[55] Variations in the SLC24A5 gene account for 20–25% of the variation between dark and light skinned populations of Africa,[56] and appear to have arisen as recently as within the last 10,000 years.[57] The Ala111Thr or rs1426654 polymorphism in the coding region of the SLC24A5 gene reaches fixation in Europe, but is found across the globe, particularly among populations in Northern Africa, the Horn of Africa, West Asia, Central Asia and South Asia.[58][59][60]