again, and qiven their overwhelminq share of world trade (nearly 70.0 per cent) this led to the fall in commodity-prices discussed above, and to 1 ower export revenues for devel opinq countries. The most affected were the OPEC countries: the volume of imports from them to OECD countries fell by 15 per cent in 1981, and was expected to fall by a further 10 per cent in 1982. But OECD im­ ports from other developinq countries did qrow in 1981, and are expected to increase even more rapidly in 1982 and 1983. Oil­ -exportinq developinq countries increased their imports at a faster rate in 1981 than 1980, since the level of oil prices was still rising and many of them were engaqed in larqe development 12 E/ECA/CM.9/5 proqramrnes requirinq considerable imports. This however came to an errl in 1982, with the cut-backs in expenditure forced on oil exporters by fallinq revenues. 12. Oil price movements and falls in primary ccrnmodity prices were the cause of siqnificant terms-of-trade losses for develop­ inq oil-importinq countries. IMF calculates the loss at same 9.2 per cent in 1981, while industrial countries reqistered a qain of 2.3 per cent. Oil-exportinq countries qained a further 12.4 per cent in 1981, but the position was reversed in 1982 with the decline in oil prices. 13. In a similar fashion, the huqe surplus accumulated by oil exporters in 1979/80 has been contractinq steadily, while the positions of other country qroupinqs has either improved or deteriorated less rapidly. IMF estimates that the current balance of oil exporters fell from $ll5.0 billion in 1980 to $70.8 billion in 1981, and will fall to or!ly $25.0 billion in 1982. r.leam.,rhile the developed market economies considerably im­ proved their position from a deficit of $44.8 billion in 1980 to 