text: exports, heavy protection cf fledql i nq industries a ncl i r:efficie nt paru.statal processinq and marketir;q aqer.cies. 36. Acccrdir,q tc data prcvidec:iby FAO, production of the major i n.iustriu.l crcps (cocoa, coffee, cotton, qrou nd-nuts, sisal and tcLaccc) in develcpinq Africa ir.creasect by 11.7 per cent in 1981 atter a urcp of 5.3 per cent ir. 1980. The surqe emanated mainly frc.m tlte bumper coffee, qrourxl-r.ut ar;d suqar-cane harvests in 1SGL Table IV.A.10 Evolution of selected expert commodities, 1980-1981 Cocca Ccffee 1 Cotten 3 Crourii-l ...:ts 4 Sisal Sc..qar 57 Tt:a ';:eta CCC Production ( Thcusa nds cf tcr,nes) 1980 19[;1 986 <::!~4 167 1 288 308 3 205 558 5 201 218 188 295 64 687 193 19G 320 25G Growth rate ir: production (Perce r:taqe cha nae over pre cedi nq year) 1980 1981 -3.1 0.8 -0.9 10.4 3.1 -3.1 -2.8 14.1 26.7 -13.8 -6.2 12.9 -6.8 1.6 2.9 -20.0 Expert earninqs (Billions of US dollars) 1980 1981 1.99 1. 64 2.79 2.07 1.09 Q.96 0.12 0.20 o.o1 0.08 0.80 0.68 0.28 0.26 0.34 0.45 Scu .-ces: FAO Production Yearbook 1981 (Rome, FAO, 1982) arrl EC,\ sec _·etu.riat estimates. 37. Cc.:fee production ir; developinq Africa increased by 10.4 per c"-·r.t rrcm 1,167,000 tcr.r.es in 1980 to 1,288,000 tonr.es in 1981. Cuspi tL-these prcductior. qai ns, hc"\.rever, the wholesale price in­ .-.:t.:x ( 1975 = 100) slid dC\Hllo<~ards to 168.5 ·in 1981 compared to 42 E/ECA/CM.C:/5 241.2 in 1980. Consequently, export earnings for cevelop:_nq Africa declined to $2.1 billion from $2.8 billion .'..r 19EO. 38. The behaviour of irrlustrial crops in the rnajcr African producing countries has been rather mixed. In Uqanda, for ex­ ample, the proportion of the coffee crop rnarketec) thrcugh of:ti­ cial cha nr;els steadily declined until tlJe 1978/79 season. ':'he marketing system was seriously hampered by the lack of essential 
analysis: The text appears to be discussing the trends and statistics of agricultural production, trade, and economic development in developing African countries, specifically focusing on coffee, cocoa, and other major crops. The language used is technical and formal, suggesting a report or analysis from an international organization or academic institution.