There is also a severance pay for employees who have been fired without cause in Israel. For these types of unemployed Israelis, they entitled to a severance pay of one month's pay for each year that the unemployed individual had worked for his or her previous employer. Another eligibility that an unemployed individual must have to receive subsistences from the National Insurance Institute is for the unemployed individual to be at least 20 years of age. There are exceptions to this rule such as including unemployment benefits to 18–20 years olds who are the main supporter of a family or of a child. Unions are also involved with the unemployment system in Israel. One such union group is the Histadrut which is commonly known as the General Organization of Workers in Israel. One of the Histadrut's main objectives is to creates job assistance programs to help unemployed workers back into the workforce. Dr. Roby Nathanson, a doctor in economics at the University of Köl, believes these job replacement programs are successful due to the job unemployment rate in Israel. The unemployment rate in Israel in 2009 had been 9.5% and has since dropped to around 4% in 2018.