Economy of Liechtenstein
The economy of Liechtenstein is based roughly equally on services (especially financial services) and industry, with a small but significant agricultural sector. The country participates in a customs union with Switzerland and uses the Swiss franc as its national currency. It imports more than 85% of its energy requirements. Liechtenstein has been a member of the European Free Trade Association (EFTA) since 1991 (previously its interests had been represented by Switzerland). It also has been a member of the European Economic Area (EEA) since May 1995 and participates in the Schengen Agreement for passport-free intra-European travel.
Coins of the Swiss franc
Since 2004, moreover, the existing pure nickel 20 centime coins of the years 1881–1938 have been withdrawn from circulation because machines cannot detect them. Today, all the coins except the 5 centime coin (aluminum-bronze since 1981) are in a copper-nickel (cupronickel) alloy. Seven coins (1995) are currently in circulation: