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Comparison of Population Growth in 3 Countries

Comparison of Population Growth Of Somalia, Brazil, and Germany

This study compares and establish relations between three countries with different income level. The demographic factors and indicators have been used for the study (Yfantopoulos, 2004). Somalia, a low income country, Brazil a middle income economy and Germany, a high income economy are the countries under study.

Demographic indicators used include crude birth, crude death, net migration, growth rate, infant mortality and life expectancy for men and women. The data for the years 2000, 2025 and 2050 have been used in comparing the population projection. The collected demographic indicators have been tabulated for each country.

Population Growth Rate/Ratio

The population pyramids have also been drawn to show the distribution of various age groups in the populations of the three countries. The population growth rate/ratio for the three countries is decreasing over the years. This means that the population for each country is decreasing as the years pass by.

The population growth rates however differ for each country. Germany inhibits least growth rate compared to Brazil and Somalia. During the year 2000, the population growth rate for Somalia was the highest with a 3.6% rate.

For Brazil, the growth rate stood at 1.4% while Germany with a rate of 0.1% had the least growth rate. The table 008 for Somalia indicates a reduction of 2% in the growth rate over the projected 50 years. The natural increase is positive for Somalia and Brazil but negative for Germany.


Somalia experienced the highest net migration while Brazil had a zero net migration. The negative growth rates for Germany and Brazil showed a decrease in population for the years 2025 and 2050.

Infant Mortality

The infant mortality rate is higher for Somalia at 126 and least for Germany at 4 in the year 2000. There was less number of deaths in infants below age one for Germany. There was high infant mortality rate for men than for women in the three countries across the years.

The infant mortality rate and life expectancy decreases for the three countries across the projected years. Germany inhibited a relatively uniform infant mortality rate for male, female and both sexes.

Life Expectancy

The life expectancy for male was lower than that of women for the three countries across the projected years. Life expectancy was higher in Germany and lower in Somalia. Life expectancy is seen to increase as the years goes by for the three countries (Yfantopoulos, 2004).

The tables are shown below.

Population Pyramid

Pyramids were constructed for the three countries to give information of the proportion of male and female in each age group (Korenjak, 2008).

Somalia Population Pyramid

The 2000 Somalia population pyramid is an expansive population pyramid. The shape is triangular.

A larger number of the population is in the younger age groups. Each age group is larger in size than the one preceding it. The elderly dependents comprise a small proportion of the population.

The working population is also small in number. There was a rapid population growth. This is a balance pyramid, the sex ratio is balanced.

The Somalia 2010 and 2025 pyramids are triangular in shape. The broad base and narrow top indicates high birth and death rates. The elderly population is small in number.

The sex ratio is balance. This Somalia 2050 pyramid is symmetrical. The sex ratio is balanced. It is broader at the bottom indicating a higher percentage of young population.

Brazil Population Pyramid Graphs

The pyramid is triangular indicating that larger percentage of the population is in the young age group. The birth rate is lower. The population growth is rapid.

The pyramid is constrictive. The population growth is negative with a balanced ratio. The largest age group is 20-55.

The population is stable. The se ratio is balanced. There is a larger number of working population.

Germany Population Pyramid Graphs

This pyramid displays a constrictive population. The birth rate is slow. The gender ratio is balanced.

Larger percentage of the population is working. There is a negative growth rate. This is a constrictive population pyramid.

Young population has lower numbers. The population growth is negative. Large percentage of the population are in the 55-69 age group.

The pyramid is symmetrical and the sex ratio is balanced. This is a stationary population pyramid. There are somewhat equal numbers for all age groups.

The birth rate is low. Old age groups are small in number though. The population growth is stable/neutral (Korenjak, 2008).

The algebraic function which best fit the data is exponential growth model p=a where p=population growth, a= base population, e=exponent, t=number of years.

The demographic indicators and graphs are a valid measure of development in a country. These indicators helps in understanding the past trends and helps in preparing for future development and policies. The other indicators that can be used to measure the economic status in a country include gross domestic product and gross national income.


Germany is a more developed country as its population is in a stable state. A larger percentage of the population is working hence increasing the national income. Brazil is projecting to a stable population growth.

Somalia has a large percentage of its population in young age group. There is low workforce leading to underdevelopment. High mortality rate lead to low life expectancy.



Table 008:

Years Crude Birth Crude Death Net Migration Growth Rate
2000 48 19 7 3.60%
2025 37 11 0 2.60%
2050 25 8 0 1.70%


Table 010:

Years Infant Mortality Rates: Male Infant Mortality Rate: Female Infant Mortality Rate Both Sexes Life Expectancy: Male Life Expectancy: Female Life Expectancy Both Sexes
2000 136 116 126 45 48 46
2025 89 73 81 54 58 56
2050 50 38 44 63 69 66



Table 008:

Years Crude Birth Crude Death Net Migration Growth Rate
2000 18 6 0 1.4%
2025 13 7 0 .6%
2050 10 11 0 -.1%


Table 010:

Years Infant Mortality Rates: Male Infant Mortality Rate: Female Infant Mortality Rate Both Sexes Life Expectancy: Male Life Expectancy: Female Life Expectancy Both Sexes
2000 34 26 30 66 73 70
2025 16 11 14 72 80 76
2050 8 6 7 77 84 80



Table 008:

Years Crude Birth Crude Death Net Migration Growth Rate
2000 9 10 2 .1%
2025 8 13 2 -0.3%
2050 9 16 2 -0.5%

 Table 010:

Years Infant Mortality Rates: Male Infant

Mortality Rates: Female

Infant Mortality Rates: Both Sexes Life Expectancy: Male Life Expectancy: Female Life Expectancy: Both Sexes
2000 5 4 4 75 81 78
2025 4 3 3 79 84 82
2050 3 3 3 81 86 83


Works Cited

Korenjak, S. (2008). Clustering of Population Pyramids. Informatica, 157–167.

Yfantopoulos, J. N. (2004). Demographic Trends and Socoi-Economic Indicators in EU and Greece. 65-78.



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