The table gives data on the countries categorized into three types according to their level of incomes and also present data across three metrics: population growth, average birth per woman and life expectancy in the years 2002 and 2004.
Overall, low income countries had the most significant shifts across the categories of population growth and average birth per woman. However, when it comes to life expectancy, it was high-income countries which took the lead.
Focusing on population growth first, high income countries saw rises of 0.8% in 2002 and 0.7% in 2004 while those falling into middle-income countries experienced slightly higher growths of 0.9% for both listed years. The rises seen low-income countries, on the other hand, were almost twice as much as opposed to aforementioned countries, at +2% in 2002 and +1.8% in 2004 respectively.
As far as average birth per women is concerned, the ranking of the countries was the same as the population growth. For example, in high-income countries, the rate accounted for 1.7 child per woman in both years, which reached 2.2 and 2.1 for middle-income countries. The figures for low-income countries once again were double the metrics seen above, at 3.9 in 2002 and 3.7 in 2004.
The scenario was quite different when it comes to life expectancy for the listed countries. High-income countries, unlike the previous metrics, topped the chart where their respective figures stood at 78 years for both 2002 and 2004. This was followed by middle-income countries, with their population living averagely up to around 70 years. Low-income countries, in stark contrast, were ranked the lowest, with the citizens’ life expectancy hovering around 58 years only.