SAT Chemistry Subject Test: How Many CE's?

Approximately how many CE’s should I expect for the SAT Chemistry Subject Test section with the T, F, and CE?

I counted 3/15 in the official practice test, but wasn’t sure if that was generally representative.

On the test I took, there were 2. From what I’ve been told, there are almost always at least 2. I was also told that there are usually no more than 4.