Is a 5 GB sem5.db normal for a SEP SBE 12.1.4 database?

Site specifics:

Product is Symantec Endpoint Protection Small Business Edition 12.1 (not the Enterprise Edition).

It is running under Windows Server 2008 R2.

SEPM is at 12.1.4023.4080.

There are 8 clients, including the server.

sem5.db is 5.3 GB, and there is a mix of 32- and 64-bit clients.

Is this a "normal" size, or should I use the shrink utility?

Thanks!