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World Development Report 1984

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series in national currencies are applied to the 1975 are in dollars at prevailing exchange rates. Note<br />

value added in US dollars to derive the values, in that they do not include trade in services.<br />

1975 US dollars, for 1970 and 1981. The growth rates of merchandise exports and imports<br />

are in real terms and are calculated from quantum<br />

(volume) indices of exports and imports. Quantum<br />

Table 8. Commercial energy indices are the ratios of the export or import value<br />

The data on energy generally are from UN sources.<br />

Thevrefr t comerialform ofpriaryenegy:<br />

index to the corresponding unit value index. For<br />

msdevelopneconoies these indesa Fr<br />

most developing economies these indices are from<br />

Theytrolef tod commercal forms ofquids, p ergy ari<br />

petroleum and natural gas liquids, natural gas,<br />

soId ful (cal lint,ads'o) n rmr<br />

the UNCTAD Handbook of International Trade and<br />

Deeomn Sttsisadspleetr.aao<br />

<strong>Development</strong> Statistics and supplementary data. For<br />

solidrfuels (nuceal, ignithe,man , and prim industrial economies the indices are from the UN<br />

electricity geothermal (nuclear andhydroYearbook<br />

power)-all converted into oil equivalents. Figures<br />

of International Trade Statistics and Monthly<br />

Bulletin of Statistics. The summary measures are<br />

on liquid fuel consumption include petroleum median values. Note again that these values do not<br />

derivatives that have been consumed in non- include trade in .<br />

energy uses. For converting primary electricity The terns of trade, or net barter terms of trade,<br />

into oil equivalents, a notional thermal efficiency of<br />

> , ' , ~~~~~~~~~~measure<br />

the relative<br />

. '<br />

level of export prices corn-<br />

'<br />

34 percent has been assumed. The use of firewood pared to import prices. Calculated as the ratio of a<br />

and other traditional fuels, though substantial in country's export unit value index to the import<br />

some developing countries, is not taken into unit value index, this indicator shows changes<br />

account because reliable and comprehensive data over time in the level of export prices as a percentare<br />

not available.<br />

age of import prices. The terms-of-trade index<br />

The summary measures of growth rates of numbers are shown for 1979 and 1982, with 1980 =<br />

production are weighted by volumes of production 100. The unit value indices are from the same<br />

in 1974; those of growth rates of en'ergy consunp- sources cited above for the growth rates of exports<br />

tion, by volumes of consumption in 1974; those of and imports.<br />

energy consumttiptionz per capita, by population in 1974.<br />

Enzergy imports refer to the dollar value of energy<br />

imports-Section 3 in the Revised Standard Inter- Tables 10 and 11. Structure of merchandise<br />

national Trade Classification (SITC)-and are trade<br />

expressed as a percentage of earnings from mer- The shares in these tables are derived from trade<br />

chandise exports. The summary measures are values in current dollars reported in UN trade<br />

weighted bv merchandise exports in current dollars.<br />

tapes and the UN Yearbook of International Trade Sta-<br />

Because data on energy imports do not permit a tistics, supplemented by other regular statistical<br />

distinction between petroleum imports for fuel publications of the UN and the IMF.<br />

and for use in the petrochemicals industry, these Merchandise exports and imports are defined in the<br />

note for Table 9. The categorization of exports and<br />

percentages may overestimate the dependence on<br />

imported energy. ~~~~imports follows the Revised Standard International<br />

Trade Classification (SITC).<br />

In Table 10, fuels, mniicrals, anid metals are the com-<br />

Table 9. Growth of merchandise trade modities in SITC Section 3, Divisions 27 and 28<br />

(minerals, crude fertilizers, and metalliferous<br />

The statistics on merchandise trade are from UN ores), and Division 68 (nonferrous metals). Othler<br />

publications and the UN trade data system, sup- prima rl/ commiiiiodities comprise SITC Sections 0, 1, 2,<br />

plemented by statistics from the UN Conference and 4 (food and live animals, beverages and<br />

on Trade and <strong>Development</strong> (UNCTAD), the Inter- tobacco, inedible crude materials, oils, fats, and<br />

national Monetary Fund (IMF), and in a few cases waxes) less Divisions 27 and 28. Textiles and clothinlg<br />

<strong>World</strong> Bank country documentation. represent SITC Divisions 65 and 84 (textiles, yarns,<br />

Merchandise exports and imnports cover, with some fabrics, and clothing). Machinerlv and transport<br />

exceptions, all international changes in ownership etlizipment are the commodities in SITC Section 7.<br />

of goods passing across customs borders. Exports Other miianiuifacturcs, calculated as the residual from<br />

are valued f.o.b. (free on board), imports c.i.f. the total value of manufactured exports, represent<br />

(cost, insurance, and freight), unless otherwise SITC Sections 5 through 9 less Section 7 and Divispecified<br />

in the foregoing sources. These values sions 65, 68, and 84.<br />

278

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