Yes. Here's some tabular data on hospitalizations and deaths vs. vaccination status[1] Those are easy to monitor. How well vaccination prevents infection is harder to determine.

Also remember, this is still the first generation of vaccines. There are some nasal spray vaccines in testing which look to be much more effective in preventing infection.

[1] https://www.cdc.gov/mmwr/volumes/70/wr/mm7037e1.htm#T1_down