Use IFs (Download): Population
Population by Age and Sex
The Population by Age and Sex option can be found from the Main Menu: choose the Display option, the Specialized Displays sub-option, and the Population by Age and Sex sub-sub-option. The option is also found in the Main Menu Map options.
That will bring up what demographers call an age-sex distribution of population, like the one below for Mexico in 2020. From this menu it is possible to display a population chart for any country/region or group of the globe. If you would like to display a country chart, click on Change Display and then Change Country/Region. A list will appear and you can scroll down to the country of your choice, in this case, Mexico.
In order to set the appropriate year, click on Advance to move the chart forward 5 years. Clicking on Regress will move the chart backwards 5 years. If you would like to display a chart based on a group, click on the Use Groups toggle, then click on the Change Display toggle and the Change Groups sub-option.
You can also display the numbers that were used to create this chart by clicking on the Show Numbers option. You also have the option of setting the year you would like to study by clicking on Change Display and then the sub-option Set Year.
The Change Scenario sub-option under Change Display allows display of results from the base case or the working file. You will learn more about the working file and alternative scenarios in Lesson 2 and Lesson 3.
In the interest of transparency, IFs presents information about population data and equations that are used to determine these numbers.
Experiment with the options on the population graph. Try other countries/regions, display groups, and showing the numbers behind the graph. In particular, try Distribution Types, so that you can also look at fertility and mortality patterns.
Birth Cohort Information
The feature Birth Cohort Information is located under the Specialized Display suboption, which is in turn located under the Display topic on the Main Menu.
The use of this feature is quite similar to the use of Cohorts of Population. However, this feature allows the user to view the total population of a country/region or group as broken down into generations. For example, notice the left side of the picture shown below. In this example, the birth cohorts are for Canada. For the year 2005, the majority of the population is grouped into Generations X and Y, which were born between the years 1965-1984 and 1985-2010 respectively, and the Baby Boom generation (1945-1964). A few of the Pre-Baby Boom generation is alive, while (obviously) no one from Generation Z is born yet.
The year 2005 is displayed when the Birth Cohort option is first opened. Clicking on Advance or Regress will change the displayed year in five-year increments- from 2005 to 2010, from 2010 to 2015, and so on. To view a specific year, and to avoid having to click Advance multiple times to reach that year, simply select Set Year in the Change Display option in the heading. The user can select any year between 2005 and 2100.
The user may also be interested in view how the distribution of generational birth cohorts are affected by running scenarios different from the base case. To change the scenario, first select Change Display, and then Change Scenario.