of whom have fled to Russia or China. 1,418 were registered as arriving in South Korea in 2016. In 2017, there were 31,093 defectors registered with the Unification Ministry in South Korea, 71% of whom were women. In 2018, the numbers had been dramatically dropping since Kim Jong-un took power in 2011, trending towards less than a thousand per year, down from the peak of 2,914 in 2009. Professor Courtland Robinson of the Bloomberg School of Public Health at Johns Hopkins University estimated that in the past the total number of 6,824 and 7,829 children were born to North Korean women in the three Northeastern Provinces of China. Recently, survey results conducted in 2013 by Johns Hopkins and the Korea Institute for National Unification (also known as KINU) showed that there were about 8,708 North Korean defectors and 15,675 North Korean children in China's same three Northeastern Provinces which are Jilin, Liaoning and Yanbian Korean Autonomous Prefecture. Most North Korean refugees reportedly leave the country due to economic reasons. Based on a study of North Korean defectors, women make up the majority of defections. In 2002, they comprised 56% of defections to South Korea (1,138 people), and by 2011, the number had grown to 71% (2,706 people). More women leave the North because they are more likely to suffer financial hardships. This is due to the prevalence of women in service sector jobs whereas men are employed in the military. According to South Korean government data, 45% of defectors cited economic reasons for defecting. According to NK News, men had a higher tendency to leave the country due to political, ideological or surveillance pressure. In the first half of 2018, women made up 88% of defectors to the South. By destination South Korea South Korea's Ministry of Unification is a government organization that is in charge of preparing for a future reunification between North and South Korea. It is responsible for north–south relations including economic trade, diplomacy, and communication, and education of reunification, which involves spreading awareness in schools and among the public sphere. The Ministry of Unification is thus the main organization that manages North Korean defectors in South Korean territory by establishing admission processes and resettlement policies. It also has regional sub-organs called Hana Centers that help defectors in their day-to-day life for a more smooth transition into South Korean society. The number of defectors since the 1950–1953