While many Saudi native men found employment with the government, there were not enough government jobs as over 65% of the population is of working age.[8] "Saudization" the workforce has been a goal of the kingdom since at least the Fourth Development Plan (1985-1989) which called for replacing foreign workers with Saudi natives as one of its objectives. Immigration was tightened and many undocumented foreign workers were deported, but the program was only a marginal success.[9]