decreasing

The number of stitches between the decreasings decreases with every round, so that the decreasings form slanting lines meeting in a point.

Strangely, the number of students is decreasing each year.

The number of students is decreasing year by year.

As is evident from the data, smoking is not decreasing among the young.

The country is aiming at decreasing its imports.

The population of this city is decreasing every year.