Passage: Before the discovery of oil, the economy of the Qatari region focused on fishing and pearl hunting. A report prepared by local governors of Ottoman Empire in 1892 states that total income from pearl hunting in 1892 is 2,450,000 kran. After the introduction of the Japanese cultured pearl onto the world market in the 1920s and 1930s, Qatar's pearling industry crashed. Oil was discovered in Qatar in 1940, in Dukhan Field. The discovery transformed the state's economy. Now, the country has a high standard of living for its legal citizens. With no income tax, Qatar (along with Bahrain) is one of the countries with the lowest tax rates in the world. The unemployment rate in June 2013 was 0.1%.  Corporate law mandates that Qatari nationals must hold 51% of any venture in the Emirate.As of 2016, Qatar has the fourth highest GDP per capita in the world, according to the International Monetary Fund. It relies heavily on foreign labor to grow its economy, to the extent that migrant workers compose 86% of the population and 94% of the workforce. Qatar has been criticized by the International Trade Union Confederation. The economic growth of Qatar has been almost exclusively based on its petroleum and natural gas industries, which began in 1940. Qatar is the leading exporter of liquefied natural gas. In 2012, it was estimated that Qatar would invest over $120 billion in the energy sector in the next ten years. The country was a member state of Organization of Petroleum Exporting Countries (OPEC), having joined in 1961, and having left in January 2019.

Question: How low was Qatar's unemployment rate that they would seek to have immigrants make up 86% of the people living there?
0.1%