Bit Rate from P2 to FCP

I Film on a Panasonic P2 HD Video Camera, the Recording Settings Are as Follows, 1920x1080 – AVC Inter 100mbps /50i. When I Ingest the Footage into FPC 7 It Converts It into a .Mov.

The unwrapped mov File Size Is 1920x1080 Apple AVC Intra but the Data Rate Is Only 13.9 MB/Sec

The Camera Records at 100 Mbps and FCP Converts It to 13.9MB/Sec.

Am I Understanding This Correctly..

Question,

During the Ingest the Bit Rate Drops Significantly?

Or am I doing something wrong?