1975
life expectancy 71.4 (65 if you are black)
Unemployment rate 9 per cent
Youth literacy 80 % (1980)
Human Development Index 0.875
2007
life expectancy 77.9 (72.7 if you are black)
infant mortality 'has been declining steadily for more than four decades' Joyce Martin CDC
Unemployment rate 4.6 per cent
Youth (18-24) literacy 87 %
Human development index 0.948