What a sentence for the word curtailed?

Increasing the number of police officers on patrol each night has curtailed crime rates across the city.

Drinking a large glass of water before each meal may curtail your appetite.

As he paid off the huge credit card bill, he vowed to curtail his spending.

Once she begins a treatment program, she'll be forced to curtail her drinking.

Strict rules and threats to take away his cell phone did very little to curtail my son's late night partying.