2015-2017 omitted the larger, ethnoregional ethnic communities, including the Central Thai majority; it therefore covers only 9.7% of the population. There is a significant number of Thai-Chinese in Thailand. Chinese origins as evidenced by surname were erased in the 1920s by royal decree. Fourteen percent of Thais may have Chinese origins. One scholar estimated that the Sino-Thai population, itself around 14 per cent of the total, was composed of around 56 percent Teochew, 16 percent Hakka, 12 percent Hainanese, 7 percent Hokkien, 7 percent Cantonese and 2 percent other. Significant intermixing has taken place such that there are few pure ethnic Chinese, and those of partially mixed Chinese ancestry account for as much as a third to a half of the Thai population. Those assigned Thai ethnicity in the census process made up the vast majority of the population in 2010 (95.9 percent); two percent were Burmese, 1.3 percent other, and 0.9 percent unspecified. Thus, the ethnosocial and genetic makeup situation is very different from that which is reported or self-claimed. The vast majority of the Isan people, one-third of Thailand's population, are of ethnic Lao with some belonging to the Khmer minority. They speak the Isan language. Additionally there have been more recent waves of immigration from Vietnam and Cambodia across porous borders due to wars and subsequent poverty over the last few decades, whose immigrants have tried to keep a low profile and blend in. In more recent years the Isan people began mixing with the rest of the nation as urbanization and mobility increase. Myanmar's numerous ethnic wars between the army and tribes who speak more than 40 languages and control large fiefdoms or states, has led to waves of immigrants seeking refuge or work in Thailand. The makeup of Myanmar nationals is complex and includes, for example, people of Nepali ethnicity who escaped Nepal, entered Myanmar, and then emigrated to Thailand. Following the 2014 Thai coup d'état, Thailand's Department of Employment released figures showing that 408,507 legal workers from Myanmar, Laos, and Cambodia worked in Thailand. An additional 1,630,279 Myanmar nationals of all ethnicities, 40,546 Laotians, and 153,683 Cambodians were without legal work authorization, but also worked and resided in Thailand. Some 180,000 Cambodians were said to have left Thailand post-coup due to crackdown rumors, indicating government figures were an under count. These statistics are merely a single snapshot and hardly authoritative as there is constant