Ian J Duncan - Table 1

Table 1: Life expectancy at birth (1950–55 and 1990–95).

	1950-55	1990-95
World	46.4	64.7
More developed countries	66.5	74.3
Less developed countries	40.9	62.9

Source: World Population Prospects: The 1994 Revision (New York, 1995), taken from Reference 6, Table 5.2.