Audio Quieter in Premier than in Audition

So when I do my video work I usually Extract the Audio, Edit it in Audition, then insert the Edited file back into Premiere.  This has worked well for me for a couple years now.  Recently however I noticed an issue.  My audio is the decibel level I want it to be when I export it out of Audition, but when I Import it to Premiere it drops down a few Decibels.  

Namely the last thing I do in Audition is I Normalize to -11dB.  That gives me a nice -12dB average audio level to account for peaks and lows in my audio, generally.  I can play it back in Audition and confirm that it is averaging right around -12dB.  However when I import it into the Project in Premiere, now it is down to around -15dB and I have to boost the audio 2-3 dB to get it where I want it to actually be.  

Is there something I'm missing here?  Is it an issue with Audition exports or Premiere Importing? If I close Audition, then Reopen it and freshly import the audio to it, it still seems to be the -12dB I wanted it to be, so it seems to be a Premiere issue.

Files are 48khz 24-bit .WAV files.