Best factual (not spin) source is the weekly report put out by the Vaccine Operations Centre. You may need to have the previous week's report open as well as the presentation is not consistent and often you have to work backwards to get the latest week's figure for something. Normally when it shows a week on week decrease.
Search on this each week: "Vaccine Operations Centre – Weekly Operational Update".
You may have to scroll down a few lines to find the latest report. The one due for August 9 is late.
A statement from the Vaccine Operations Centre on the status of the vaccine rollout.
www.health.gov.au