Social Argentina Bolivia Area (thousand square miles) …… . . . 1,072.1 424.2 Estimated total population (millions) ……. . 26.1 4.8 Percentage of urban population . ……… 83.7 39.6 Annual rate of total population growth (% average 1970-1977) … …. 1.7 2.3 Birth rate per 1,000 inhabitants ….. ….. …. . 21.4 46.6 Infant mortality per 1,000 live births …. 60.9 175.0 Years of life expectancy at birth . .. … . 69.4 48.2 Percentage of literacy …………… 92.6 32.0 People per doctor ….. 446a 3 , 0 8 2 b Official unemployment rate (% of work force)c 3.2 na Economic Gross domestic product (millions of 1976 u$s) …… Gross domestic product per capita (in 1976 u$s) .. Gross domestic product structure (average %, 1972-1976) Services (trade, finance, government) Manufacturing, Construction, Basic Services .. Agriculture and Mining Trade (millions of u$s) Exports Imports Gross external public debt, December 31, 1976 (millions of u$s) U.S. direct investment in 1 9 7 5 d (Book value, millions of u$s) . …… .. . U.S. economic aid 1962-1977 (millions of u$s)e Military Size of armed forces ( 1 9 7 5 )d Total members in armed forces (thousands) Percentage of population in armed forces U.S. military aid 1962-1977 (millions of u$s)e Number of students trained under U.S. International Military Education & Training Program, 1950-1977 Government % of total central government expenditures for Education . . ……….. Public health Housing Defense . 44,840 1,720 21.0 62.5 16.5 5,610 3,791 2,321 13,995 3,787 485 1,313 1,331 44.3 28.2 27.5 47.4 33.2 19.4 641 2,171 644 2,297 6,190 1,576 4,171 1,154 49 174 186.3 550.2 1,011.1 135 .55 262.4 24 60 .44 .58 72.6 158.2 45.3 39.3 15.4 630 635 1,006 na 137.2 21 .69 63.3 4,023 4,437 6,883 2,807 9.3′ 5.1 4.2 19.4 24.1′ 7.4 1.6 14.1 15.5a 6.0 3.8 na Source: IDB Economic and Social Report, 1977, except as otherwise noted. aThe Military Balance 1974-75, International Institute for Strategic Studies, London; bIDB, Economic and Social Prog- ress in Latin America, 1970, 1972; CLatin America Economic Report, Vol. VI, Nos. 5, 14, 17, 34; dDept. of Commerce, U.S. Direct Investment in South American Andean Common Market, June 7, 1977; eU.S. Overseas Loans and Grants, A.I.D., 1977,; UN Statistical Yearbook, 1977, 1978. Chile 292.3 10.7 79.2 1.9 23.4 54.7 64.4 90.7 273a 13.0 Uruguay 72.2 2.8 80.8 0.9 20.5 48.8 69.0 94.9 8 0 7 b 12.8 15.4 6.0 1.2 na