Working closely with the IMF, the government has made considerable progress in reducing inflation and the budget deficit. The national currency was made convertible in 2003 as part of the IMF-engineered stabilization program, although some administrative restrictions remain. The agriculture and manufacturing industries contribute equally to the economy, each accounting for about one-quarter of the GDP. Uzbekistan is a major producer and exporter of cotton, although the importance of this commodity has declined significantly since the country achieved independence. Uzbekistan is also a big producer of gold, with the largest open-pit gold mine in the world. The country has substantial deposits of Silver, strategic minerals, gas, and oil.