 They numbered 105,133 people as of 1990, making more up than 75% of the population.The Yi people of Gaojiazhai 髙家寨 and Manxieba 曼歇坝 in Simaoba 思茅坝 speak the Southern Yi dialect (南部方言), while the Yi of other areas speak the Western Yi dialect of Weishan County () ("Simao Prefecture Almanac" 1993