This is the 4088th most frequent German word.
zunahme
Increase; growth.
Here, 'Zunahme' is used as a noun indicating the act of increasing, specifically the rise in population.
Die Zunahme der Bevölkerung hat erhebliche Auswirkungen auf die Infrastruktur.
The increase in population has significant effects on the infrastructure.
'Zunahme' is used to represent a quantitative rise or escalation concerning specific phenomena, in this case, car accidents.
Eine Zunahme von Autounfällen wurde in den letzten Jahren festgestellt.
An increase in car accidents has been noted in recent years.
In this sentence, 'Zunahme' is associated with a gradual increase of a measurable factor, average temperatures.