I don't think it's rocket science to know that pretty much all or at at least 80% of A/C T/off overweight the world over, well compared to the calculated T/off weight that is.
Aussie are amongst the fattest on the planet & getting worse!
Some of the carry on bags I see get past ground handling staff onto the A/C are nothing short of a 10 man tent all squashed into a soft bag!
84 kg's inc carry on bags per adult...............yeah right like to see that!
Wmk2