Fortnightly incomes are adjusted twice a year, in April and October, to reflect any changes in the Consumer Price Index (CPI), all groups for Adelaide.

CPI rates for the last ten years are:

Year April October
2018 1.83%  
2017 1.12% 0.46% 
2016 0.47% 0.19%
2015 0.66% 0.56%
2014 2.05% 1.05%
2013 1.9% 0.2%
2012 0.94% 0.22%
2011 1.20% 2.65%
2010 1.41% 1.33%
2009 1.01% 0.59%