The 2012 Human Development Report reported that the HDI of South Africa was 0.629 (and its rank was 121) and that of the Peru was 0.741 (and its rank was 77). In 2012 South Africa’s GNI per capita (in US dollars) was 7,610 and that of Peru was 6,060. Explain these values. What do these different values of two countries imply?