Finland is a top performer in numerous metrics of national performance, including education, economic competitiveness, civil liberties, quality of life, and human development. The largest sector of the economy is services at 66%, followed by manufacturing and refining at 31%. Primary production is 2.9%. With respect to foreign trade, the key economic sector is manufacturing. The largest industries are electronics (22%); machinery, vehicles, and other engineered metal products (21.1%); forest industry (13%); and chemicals (11%).