The industry was the economic sector hardest hit by the UN sanctions and trade embargo and NATO bombing during the 1990s and transition to market economy during the 2000s. The industrial output saw dramatic downsizing: in 2013 it was expected to be only a half of that of 1989. Main industrial sectors include: automotive, mining, non-ferrous metals, food-processing, electronics, pharmaceuticals, clothes. Serbia has 14 free economic zones as of September 2017, in which many foreign direct investments are realised.