The total land under cereal production in Thailand almost doubled from 1961 to 2005 (from
6.500 to 11.5000 thousand hectares), and the total cereal production tripled in the same
period (from 10.769 to 31.490 thousand tonnes) (FAOSTATS 2007). Thailand is presently
the world's largest exporter of rice (FAO, 2004). Food availability (measured as calories
available per person per day) increased from 2,200 in 1990-1992 to 2,414 in 2001-2003
(FAO, 2006).