Count formula after a sheet is auto updated.

Hi Folks

Greetings from a bush fires smoke filled valley

But to business:

The attached sheet is auto updated from another program.
Each update fills new info into row 2 so all other updates are pushed down one.
I want the Cells in Col G to count the updates as shown ie Cell G2 will always have the highest number.

Row 2 will be blank before the first update so therefore the first update will be number 1 in G2

Hope that makes sense.

Cheers
Hammer