OPM Case Quality Review

Does anyone know or have an estimate of how long investigation cases sit in quality review? I thought mine was in adjudication with DOE but they notified me that all the elements of my SSBI are complete and NOW the entire case is in quality review.

The DOE rep told me that once it is done there it comes to the DOE adjudicators. She looking at mine the case could come to them at any time.

Im just curious if anyone has an estimated time frame?