Off topic but oh dear! Another off the cuff set of numbers intended to instill fear and loathing.
From the relevant annual reports:
Expenditure: 2001-2002 $99M; 2016-2017 $173M (ABS inflation calculations indicate $99M = $134 M in 2017) hence actual increase 29% rather than the doubling implied.
Field staff (FOI, AWI etc): 2001-2002 358; 2016-2017 468.
Total staff: 2001-2002 727; 2016-2017 830
This sort of rubbish will do nothing to convince any politician or fred public that we have a sustainable case. Remember also that the public want personal immortality at the lowest possible price when involved in aviation and are not interested in economic viability of anyone but themselves.