How many people have surnames in the world?

Roche is a typical multi-ethnic and multi-origin surname, ranking 22nd in the current surname list, belonging to the big surname series, with a population of about12.367 million, accounting for about 0.77% of the total population of China. Yicheng, Hubei is the birthplace of Roche, and then moved south, first from Xiangyang, Hubei to Zhijiang, then to Changsha, and finally became a local family in Nanchang, Jiangxi during Han Jing's reign. The population of contemporary Luo surname has reached more than 654.38+million, which is the top 20 surname in China, accounting for about 0.86% of the national population. In the 600 years since the Ming Dynasty, the population of Luo has soared from 700,000 to more than 65,438+million, an increase of 65,438 +05 times. The growth rate of Luo surname is higher than that of the whole country. Since the Song Dynasty, the population growth rate of Luo surname has been on the rise. The distribution in China is mainly concentrated in Sichuan, Guangdong and Hunan provinces, accounting for 465,438+0% of the total population of Romania, followed by Jiangxi, Yunnan, Guizhou, Hubei, Guangxi and Chongqing, where 38% of the population of Romania is concentrated. Sichuan accounts for 17% of Romania's total population and is the largest province in Romania. There are two regions with high Luo surnames in China: Yunnan, Guizhou, Sichuan and Chongqing, Guangdong, Guangxi, Hunan, Hubei, Fujian and Jiangxi. In the past 600 years, the migration direction of Romanian population from the east to Central China and North China is greater than that from north to south and southeast, and it has become the mainstream to the west and south, and there has also been a flow to the northwest Hexi Corridor. The schematic diagram of the distribution frequency of Luo surname in the crowd shows that Luo surname is one of the more common surnames in Jiangnan area. Luo's surname is in Yunnan and Guizhou, most of Sichuan and Chongqing, most of Guangdong and Guangxi, most of Hunan and Jiangxi, and the western end of Fujian, which generally accounts for more than 1.44% of the local population, and the central region can reach more than 3%. Its coverage area accounts for about 20% of the country's total area, and about 63% of the Romanian population lives. In Hainan, Taiwan Province, Fujian and most of Zhejiang, Hunan and northwestern Jiangxi, northern Sichuan, southern Anhui, southeastern Henan, southwestern Shaanxi and Ningxia, Gansu, eastern Qinghai, western and northern Inner Mongolia, and northwestern Heilongjiang, the distribution ratio of Luo's surname among local people is between 0.48%- 1.44%, covering an area of about 20.6% of the country's total area and residents.