How to have a chart showing no FLAT area?

Hello!

I have this chart that shows a FLAT area of the same "Balance" beginning with "Deposit" number 8 (see attachment). What I would like to have for this chart is NOT to show that FLAT area if there is the same balance. If there are any changes in the Balance with the next deposits, then of course I would like to see continuation of that chart. How to do it?
Can someone have any ideas, or suggestions?

Thank you for all your help!