The sector was more productive 50 years ago than it is today and, in many LDCs, the annual growth of cereal production shrunk from 3-6 per cent of agricultural produce in the 1980s to just 1-2 per cent today.
许多最不发达国家的农业生产力50年前比今天还要高，1980年代谷物产量年增长率占农业产量的3-6%，今天则收缩至占1-2%。