transfers of land, largely in the early 1960s. Bolivarian Revolution Venezuela's present-day agriculture is characterized by inefficiency and low investment, with 70% of agricultural land owned by 3% of agricultural proprietors (one of the highest levels of land concentration in Latin America). According to the Land and Agricultural Reform Law of 2001 (see Mission Zamora), public and private land deemed to be illegally held or unproductive is to be redistributed. As of January 2009, the Venezuelan government had redistributed nearly 2.7 million hectares of idle land (6.6 million acres—nearly 1/3 of the latifundio land existing prior to 1998) to 180,000 landless peasant families. A new Bolivarian Mission, Mission Vuelta al Campo was announced in 2005; it seeks to encourage impoverished and unemployed urban Venezuelans to willingly return to the countryside. This has involved using land recovered from private owners where ownership could not be demonstrated, as well as nationalisation. For example, in 2008 the government expropriated El Frio, a 63,000 hectare estate in Apure (larger than the tourist island of Isla Margarita), as its owners (reputed to include Nelson Rockefeller) could not demonstrate legal land title. The Venezuelan government has also employed foreign expertise to develop Venezuela's agricultural potential, for example by working with Vietnamese agronomists to develop planting techniques and rice seed hybrids appropriate to Venezuelan agricultural conditions. The land reform program has nevertheless been the subject of criticism from a variety of sources, with farmers said to be lacking sufficient government support, particularly in the case of urban residents moving to the countryside to develop farming cooperatives. The government has confiscated and expropriated much of the industry . State intervention has seriously damaged the agricultural sector , and Venezuela imports most of its food. There are persistent shortages of common foodstuffs. The government blames "hoarders" and "speculators" for food shortages. The government created Misión Agro-Venezuela to support small and medium farm production of the basic foods most commonly consumed in the country. Production Venezuela produced in 2019: 4.3 million tons of sugarcane; 1.9 million tons of maize; 1.4 million tons of banana; 760 thousand tons of rice; 485 thousand tons of pineapple; 477 thousand tons of potato; 435 thousand tons of palm oil; 421 thousand tons of cassava; 382 thousand tons of orange; 225 thousand tons of watermelon; 199 thousand tons of papaya; 194 thousand tons of melon; 182 thousand tons of tomatoes; 155 thousand tons of tangerine;