Human Population Demographics
Table 1 Population (in 000s) of various countries for 1990
United States | China | Kenya | Japan | |||||
Age Group | Male | Female | Male | Female | Male | Female | Male | Female |
0 - 4 | 9655 | 9205 | 55782 | 53655 | 2701 | 2661 | 3536 | 3376 |
5 - 9 | 9355 | 8941 | 44942 | 42316 | 2191 | 2171 | 3814 | 3626 |
10 - 14 | 8700 | 8311 | 49905 | 46040 | 1743 | 1748 | 4368 | 4144 |
15 - 19 | 8846 | 8451 | 63890 | 59174 | 1267 | 1269 | 5137 | 4876 |
20 - 24 | 9632 | 9314 | 65818 | 61211 | 1016 | 1013 | 4586 | 4362 |
25 - 29 | 10906 | 10741 | 51882 | 50504 | 829 | 856 | 4155 | 4018 |
30 - 34 | 11167 | 11059 | 43832 | 40254 | 641 | 687 | 3933 | 3858 |
35 - 39 | 10264 | 10289 | 45043 | 41707 | 500 | 530 | 4539 | 4476 |
40 - 44 | 8823 | 9016 | 33588 | 30066 | 386 | 405 | 5367 | 5312 |
45 - 49 | 6868 | 7163 | 26306 | 23015 | 290 | 315 | 4506 | 4551 |
50 - 54 | 5564 | 5925 | 24449 | 21333 | 234 | 255 | 4018 | 4101 |
55 - 59 | 5059 | 5569 | 22224 | 19912 | 195 | 208 | 3798 | 3943 |
60 - 64 | 4991 | 5785 | 17897 | 16601 | 154 | 164 | 3219 | 3499 |
65 - 69 | 4530 | 5564 | 13536 | 13557 | 111 | 116 | 2160 | 2888 |
70 - 74 | 3488 | 4660 | 9077 | 9977 | 76 | 78 | 1513 | 2206 |
75 + | 4275 | 7726 | 8307 | 11199 | 88 | 89 | 2069 | 3394 |
Total | 122124 | 127717 | 576479 | 540523 | 12421 | 12566 | 60714 | 62630 |
Total | 249841 | 1117002 | 24987 | 123344 |
Questions
1. Which gender has the highest population in the youngest age groups on every pyramid? Why is this the case?
2. Which gender has the higher population in the oldest age groups? Why might this be so?
3. From the shape of the four pyramids, what can you conclude about the population growth rates? If birth and death rates remain the same in these countries, what will the pyramid look like in 25 years? What factors could change the shape of the pyramids?
4. Which country appears to have the slowest growth rate? How can you tell? If current trends continue, how might this pyramid look in 25 years?
5. How do the pyramids for Japan and the United States compare? Which of the two countries seems to have the higher fertility rate? What might have contributed to the bulges in the middle of each of these pyramids?
6. What is different about the shape of China's pyramid? What unique factors may have contrbuted to this shape?
7. For each country, determine the percentage of the population that has yet to reach its childbearing years (under 15). What do these numbers say about the prospects for future population growth?
8. Which countries' pyramids are closest to the world population pyramid? What conclusions can you draw from this?
Table 2
Country | Total Fertility | Crude Birth Rate | Crude Death Rate | Annual Rate of Increase (%) | Doubling Time (years) |
World | 2.9 | 23 | 9 | ||
Developing Countries | |||||
Average (exlcuding China) | 3.8 | 29 | 10 | ||
Egypt | 3.6 | 28 | 6 | ||
Kenya | 4.5 | 33 | 13 | ||
Madagascar | 6.0 | 44 | 14 | ||
India | 3.4 | 27 | 9 | ||
Iraq | 5.7 | 38 | 10 | ||
Vietnam | 2.3 | 19 | 7 | ||
Haiti | 4.8 | 34 | 13 | ||
Brazil | 2.5 | 22 | 8 | ||
Mexico | 3.1 | 27 | 5 | ||
Developed Countries | |||||
Average | 1.6 | 11 | 10 | ||
United States | 2.0 | 15 | 9 | ||
Canada | 1.6 | 12 | 7 | ||
Japan | 1.4 | 10 | 7 | ||
Denmark | 1.8 | 13 | 11 | ||
Germany | 1.3 | 10 | 10 | ||
Italy | 1.2 | 9 | 9 | ||
Spain | 1.2 | 9 | 9 |
9. Calculate the annual rate of increase and doubling time for each of the countries in Table 2.
10. What trend do you notice in the annual rate of increase and doubling time for the countries?
11. What does the this suggest about the use of global resources?