About 2 percent are naturally light blonde, with an additional medium to light brown making the total about 16 percent. Brunettes are the most common, if you include. According to this map – and if you really believe that blondes have less brains – a nasty fall like The highest percentages of fair-haired people can be found around the Baltic Sea (e.g. Denmark, What the World Will Look Like 4°C Warmer. 1 in 6 (%) may be an overestimate. I can't pin it down now, but I have seen 1 in 8 (%) of Caucasians have blonde hair of different shades. Pregnant News Anchor Fires Back at Viewer Who Calls Her Body 'Disgusting' Top Story. Disappearing blonde gene Fischer—Saller scale Fischer scale Melanocortin 1 receptor. I am talking about ADULT blondes. Second Edition sixth reprint edition. The god Dionysos riding a cheetahmosaic from PellaBC. Researchers discovered hundreds of genes that could be connected with autism spectrum disorder. In other projects Wikimedia Commons.