I posted this on the current events Covid discussion, but I thought it might be interesting to share here too. The government has issued some data on the boosters here:

They looked at the period from August 11th (when boosters started) to November 20th.

A bit over 8.2 million people received boosters during that time.

Over that period, we had 1,956 Covid deaths nation wide. Of those deaths, only 45 were people who had gotten a booster (2.3%).

Total infections during that time were 118,639 new cases. 4,607 of these cases had gotten the booster (3.9%).

During this time a total of 50 people with the booster ended up in the ICU.

The information comes from the Ministry of Science and Technology's official data.