Density: Number of people per square km. 0 means the same density as in 2010. 1.5 means 150% of the 2010 density and 2 means double the 2010 density.
Fertility: Total number of children per woman. 2.1 is replacement level.
Immigration: Net immigration as a percentage of the population. Currently in Canada, immigration is running at the 0.8% to 1.0% level.