1. Population Pyramids http://www.the-ukrainians.com/

2. A type of graph called a Population Pyramid was created to visually show the relationship of the age structure of a country and its male/female distribution. You will have an activity that will clearly illustrate population pyramids later on.

4. POPULATION PRYAMID FOR CANADA

10. Population Pyramid (age-sex structure)

11. 1960
USA
1980
2000
2025
2050

12. Baby Boom ( )
Boom
Echo
Bust

13. DEPENDENCY LOAD
Relationship of dependents to economically productive members of population
The amount of people aged 0-14 and 65 and above that are dependent on the workforce 14-65

14. Dependency Ratio = % under 15 + % over 65 X 100 % ages 15-64
For Example: United States
22+13 X 100 = 53.8 65
There are 54 persons in the dependent ages for every 100 persons in the working ages.

15. More Population Pyramids
Canada
Saskatchewan
Size of annual cohorts (for a total population of 100,000)

16. Ontario
Alberta
Yukon
Newfoundland

19. Stage 1
Stage 2
Stage 3
Stage 4

20. FINLAND

21. GUATEMALA

23. China: Population Pyramid Age-Sex 1990
Baby Boom
Great Leap Forward,
This population pyramid from the 1990 census tells the dramatic story of China's population history for several decades. For instance, one can see China's "baby boom" which peaked in the late 1960s and early 1970s. It started in the 1950 with those generations that - in were 35 to 40 years of age. Then the demographic disaster of the "Great Leap Forward" cut down the cohorts to half their size. The number of people that were 28 to 31 years of age in 1990 (that is, they were born between 1959 and 1963) is substantially smaller than the generations before and afterwards. This severe "cut" in China's age structure is due to the deficit of birth during the Great Leap Forward. It is well known that during severe famine years fertility declines sharply. After the Great Leap Forward births rapidly increased again. The largest cohorts were 16 and 26 years of age in that is they where born between 1964 and Then the Chinese family planning program obviously took effect. The birth cohorts rapidly declined. Those children, that were between 4 and 11 in 1990, belonged to the smallest birth cohorts after the baby boom. They were born between 1978 and At the bottom of the Chinese population pyramid one can again see large cohorts, that were born between 1985 and They are almost as large as the birth cohorts during the "baby boom" years. However, these large number of birth are just the "echo effect" of the baby boom between the mid-1960s and mid-1970s. The large baby boom generation had their (first) children - and despite the fact, that each couple should have had only one child, the total number of births was high, because of the large number of parents. (In fact the average fertility during the early 1990s was more than two children).
Chinese family planning program
Baby Boom Echo

24. Sex Ratio:
# of Males for every 100 Females
95:100 – Europe and North America
102:100 – Rest of the World

25. Ukraine

27. Green Valley, AZ (1990) Retirement Community

28. Grafton Co, NH (1970) Two years before Dartmouth went Co-ed

29. Arabian Peninsula, 1980’s Labor sending : Labor receiving

30. Population Pyramid: Eau Claire County University Town

31. More examples!!!!

38. The End