This is the 602nd most frequent Estonian word.
aastas
"Yearly" or "per year."
Here, 'aastas' signifies annual measurement.
Eestis on keskmine sademete hulk 700 millimeetrit aastas.
In Estonia, the average precipitation amount is 700 millimeters per year.
The word 'aastas' is used to indicate the frequency or quantity associated with a specific year.
Ta loeb kolmkümmend raamatut aastas.
He reads thirty books per year.
In this instance, 'aastas' denotes an average occurrence over a year.