In the 1990s, growth in trade has been the strongest among upper-middle-income economies, whose share of world trade in goods grew from 8 to 11 per cent between 1990 and 1998.
1990年代，中上收入经济体的贸易增长势头最强；这些经济体在世界商品贸易中的比例在1990至1998年期间由8％上升到11％。