Since the 1979 revolution, commercial farming has replaced subsistence farming as the dominant mode of agricultural production. By 1997, the gross value reached $25 billion. Iran is 90% self-sufficient in essential agricultural products, although limited rice production leads to substantial imports. In 2007 Iran reached self-sufficiency in wheat production and for the first time became a net wheat exporter. By 2003, a quarter of Iran's non-oil exports were of agricultural products, including fresh and dried fruits, nuts, animal hides, processed foods, and spices. Iran exported $736 million worth of foodstuffs in 2007 and $1 billion (~600,000 tonnes) in 2010. A total of 12,198 entities are engaged in the Iranian food industry, or 12% of all entities in the industry sector. The sector also employs approximately 328,000 people or 16.1% of the