Developed Countries

1. Population Pyramid of Singapore

Age structure: 

0-14 years: 12.80% (male 391,714 / female 373,766)
15-24 years: 16.00% (male 473,012 / female 489,553)

25-34 years: 21.30% (male 614,644 / female 664,018)

35-44 years: 16.40% (male 478470 / female 505,592)

45-54 years: 12.90% (male 383,414 / female 388,569)

55-64 years: 10.5% (male 316,001 / female 315,648)

65 years and above: 9.90% (male 274,863 / female 326,727) 

   Based on the latest United Nations estimation, the current population of Singapore is 5,763,968. The population density in Singapore is 8274 per km2 (21,430 people per mi2) while the total land area is 700 km2 (270 sq. miles). The median age in Singapore is 40.5 years.

          As we can see the Singapore population pyramid has a contracting type. The graph shows that the highest population in Singapore is between age 20 to 39. This type of pyramid is more common for highly developed countries with low birth and death rates. Usually, countries with such kind of population age distribution model have a long life expectancy, high level of education and good health care.

           The highest population at the beginning of the reproductive years, 20 years old, is due to the immigration into the Island has played a critical role in realizing the current population figure. As the government’s recent campaigns to increase the fertility ratio from 1.20 to 2.1 have been futile, the government has been forced to amend its immigration policies to accommodate the increasing labor demands caused by the Island’s industrialization. Therefore, it shows that the reason why is the population is higher in the reproductive years. 

2. Population Pyramid of Canada

Age structure:
0-14 years: 15.41% (male 2,819,279 / female 2,680,024)

15-24 years: 11.82% (male 2,171,703 / female 2,048,546)
25-34 years: 13.40% (male 2,460,480 / female 2,349,957)
35-44 years: 12.80% (male 2,343,792 / female 2,262,267)
45-54 years: 13.40% (male 2,410,989 / female 2,390,322)
55-64 years: 14.10% (male 2,492,120 / female 2,529,652)
65 years and over: 19.07% (male 2,958,721 / female 3,676,334) 

       Population pyramids are used by demographers as a tool for understanding the make-up of a population, whether a city, country and region. This entry provides the distribution of the population according to age. The age structure of a population affects a nation's key socioeconomic issues. The shape of the population pyramid gradually evolves over time based on fertility, mortality, and international migration trends.

       The list showed that the highest among the population in Canada is at the age of 25-54 years (prime working age). This is because as countries grow richer and developed, the standard of living improves causes the chances of having a child live into adulthood to look after their parents is greater, therefore fewer children is needed. Besides, more educated women may delay or avoid child-bearing because it will damage their economic future and opportunities. Finally, the birth rates and death rates in Canada are low due to the development process in their country and the population begins to decrease.