Back in the Middle Ages the birth was vey [?], but the death rate was also high because of [?], wars and famine.

Since the mide twentieth century Spain [?] it population.

The birth rate fell thanks to advances in [?] and improves diets.

His was also a time of a great [?] exodus.

Since [?] women started working outside of the [?] which is why they have [?] children.

[?] expectancy has increased a lot, which is why its population is getting [?].