The economy is highly regulated by the government, which has increased subsidies and tightened trade controls to assuage protesters and protect foreign currency reserves. Long-run economic constraints include foreign trade barriers, declining oil production, high unemployment, rising budget deficits, and increasing pressure on water supplies caused by heavy use in agriculture, rapid population growth, industrial expansion, and water pollution. The UNDP announced in 2005 that 30% of the Syrian population lives in poverty and 11.4% live below the subsistence level.