Economic growth in Eritrea was strong in 2011, estimated at 8.2% compared to 2.2% in 2010. Underpinning this performance was the coming on stream of mining projects with substantial foreign investment (notably the Bisha gold mine) and high levels of production of silver, copper and zinc. Growth is projected to fall to 6.3% in 2012 however, before halving in 2013 due to expected falls in world mineral prices. The authorities believe that the country has good medium to long-term prospects for offshore oil production, fishing and tourism.