Bank Reconciliation Summary Report Understanding

I run Reconciliation Summary report below details as follows.

opening balance

58 transactions

Cleared balance

Register balance

Difference

Ending balance

Un reconciled bank transaction

18 transactions

Register balance as of 30/09/2014

371 Transactions

Register balance

What is Register balance ? Is it GL account balance or bank account?

Hi Experts,

Is anyone to clear the report understanding?

Thanks