The population by origin report shows where the population comes from by displaying all components together. Births, in-migration, and the continuing population add people. Deaths and out-migration take people away. Growing up and growing out capture flows between age groups.
The chart stacks positive components above the line and negative ones below it. This gives a full picture of how each part contributes to the total population in each year.
This page is useful for seeing all the drivers of population at once. Instead of looking at births, deaths, in-migration, and out-migration on separate pages, this report puts them side by side. It shows how big each part is relative to the others.