For cultural reasons, enumerating the precise number of females has been difficult--and estimates of the percentage of females in the population range from 47.5 percent in the 1981 census to 48.3 percent in the 1987-88 Labour Force Survey.
Substrate (printing) Substrate is a term used in a converting process such as printing or coating to generally describe the base material onto which, e.g. images, will be printed. Base materials may include: plastic films or foils, release liner.
The good news is it's easy to mount your prints (both paper and canvas) to the surface of your choice. I use cradled wood panels but this would work just as well on an art board or any hard surface that does not warp easily. This video, Mounting a Digital Print onto a Cradled Panel, shows how.