Also, housing to get funding and civil servants close to revolting at EPA.
Banks registered with the Reserve Bank widened net interest margins an average of four basis points to 2.28% in 2015.
The company net profit jumped 44% to $295 million in the three months ended June.
The big five banks reported core earnings of $3.5 billion for the first half of the year, up 6% on the second half of 2014.
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