Population density increased steadily from thirty-six per square kilometer in 1970 to fifty-two per square kilometer in 1984. In 1990 sixty-three persons per square kilometer was the estimate for Ghana's overall population density. These averages did not reflect variations in population distribution. For example, while the Northern Region, one of ten administrative regions, showed a density of seventeen persons per square kilometer in 1984, in the same year Greater Accra Region recorded nine times the national average of fifty-two per square kilometer.