Until 1985 developing countries ran a trade balance surplus more than $10B, the next 2 decades had a
Until 1985, developing countries’ agricultural trade balance exhibited a net surplus of more than $10 billion a year. In the following two decades, this surplus turned into a large deficit amounting to almost $30 billion in 2005.
Thomas Fritz, "Globalising Hunger: food security and the EU's Common Agricultural Policy," Transnational Institute, 12 October 2011. [online] http://www.tni.org/report/globalising-hunger