Population Pyramids http://www.the-ukrainians.com/ http://www.infoukes.com/culture/music/ukrainians/

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. http://www.utexas.edu/cola/depts/ams/hoelscher/courses.htm

POPULATION PRYAMID FOR CANADA

Population Pyramid (age-sex structure) http://www.census.gov/ipc/www/idbpyr.html

1960 USA 1980 2000 2025 2050

Baby Boom (1946-1964) Boom Echo Bust

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

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.

More Population Pyramids Canada Saskatchewan http://www.statcan.ca/english/kits/animat/pynf.htm Size of annual cohorts (for a total population of 100,000)

Ontario Alberta Yukon Newfoundland

Stage 1 Stage 2 Stage 3 Stage 4

FINLAND http://www.census.gov/ipc/www/idbpyr.html

GUATEMALA http://www.census.gov/ipc/www/idbpyr.html

http://www.iiasa.ac.at/Research/POP/pde/FigTabs/na-poppyr91.html

China: Population Pyramid Age-Sex 1990 Baby Boom Great Leap Forward, 1959-63 http://www.iiasa.ac.at/Research/LUC/ChinaFood/data/pop/p_23c_m.htm 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 1990 - 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 1990 - that is they where born between 1964 and 1974. 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 1985. At the bottom of the Chinese population pyramid one can again see large cohorts, that were born between 1985 and 1990. 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

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

Ukraine

Green Valley, AZ (1990) Retirement Community

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

Arabian Peninsula, 1980’s Labor sending : Labor receiving

Population Pyramid: Eau Claire County University Town http://www.censusscope.org/us/s55/chart_age.html

More examples!!!!

The End