CTM store size problem

Dear all,

I have install CTM long time, but found that total protect size and timeline size incorrect, here is the both result:

  1. Total protect (Free space: 1799MB, Used space: 113401MB)
  2. Timeline View (Used: 54765)
    Why the used space at timeline view is different at Total protect calculation?
    Could someone help?
    Thank you very much.