Of the four blood types, which one has the least people? Which blood type has more people?

Indian type A blood: 265,438+0%, type B blood: 40%, type O blood: 365,438+0%, type AB blood: 8% (the proportion of type B blood decreases from north to south. There are more O-type blood in southern China. ) Black American blood type A: 29%, blood type B: 18%, blood type O: 49%, blood type AB: 4%O is a very old blood type in anthropology, also called hunting blood type; Type A blood is the second common blood type, and its ancestors were the first to engage in agricultural crops, also known as agricultural blood type; Compared with O-type and A-type, B-type is a late blood type in anthropology. This kind of people are the earliest nomadic people who adapt to climate change, also known as nomadic blood clan. Type AB is the newest and rarest blood group, accounting for less than 5% of the total population. This kind of person has the characteristics of part A blood and part B blood. On both sides of the Great Wall in northern China, there are ancient nomadic peoples such as Xiongnu, Turkic, Xianbei, Jurchen, Qidan and Xixia. Mainly eat meat, and type B blood accounts for the majority. At present, type B blood accounts for 40 ~ 60% in Mongolian and Manchu. Hunan, Guangdong, Fujian, Jiangsu, Zhejiang and other Miao, Yao, Zhuang and Dong ethnic groups are mainly vegetarian, and the number of type A blood is on the rise, estimated at 30-60%; In the Yangtze River, AB blood is common, but the quantity is very small. Historically, people with type B blood went south with people with type A blood. People in the Central Plains, Shaanxi, Shandong, southwestern Shanxi, northern Henan and other places. Type O blood is dominant, estimated at 40-55%. In the whole Han nationality, type B blood accounts for 20%, which is mainly caused by the integration of Xiongnu, Turkic, Xianbei, Nuzhen, Qidan and Xixia into the blood of Han nationality. Type A blood accounts for 40%, mainly distributed in the south, and evolved from the integration of ancient nationalities such as Chu Miao and Naman into Huaxia Group.