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The State of Food and Agriculture 2005, FAO Conference, 33rd session, 19–26 Nov. 2005. FAO, Rome, Italy
Uploaded on Tuesday 21 Feb 2012
Total agricultural output
IAASTD/Ketill Berger, UNEP/GRID-Are
Substantial gains in agricultural productivity over the past 50 years have reduced rates of hunger and malnutrition, improved the health and livelihoods of many millions of people and stimulated economic growth in numerous countries. World cereal production has more than doubled since 1961 with average yields per hectare increasing around 150% in many high and low income countries, with the exception of most nations in sub-Saharan Africa.