Saudi Arabia's command economy is petroleum-based; roughly 75% of budget revenues and 90% of export earnings come from the oil industry. It is strongly dependent on foreign workers with about 80% of those employed in the private sector being non-Saudi. In addition to petroleum and gas, Saudi also has a small gold mining sector in the Mahd adh Dhahab region and other mineral industries, an agricultural sector (especially in the southwest) based on dates and livestock, and large number of temporary jobs created by the roughly two million annual hajj pilgrims.