Average income up 51% not 42%

Stats NZ report:

Stats NZ has republished the data to correct an error. The data was first published on 19 October 2017.

The correction means that the average annual household income has risen 50.5 percent since 2007, rather than the 42.0 percent first published in October 2017. The average annual household income reached $104,583 (before tax) in 2017, not $98,621 as originally published.

Worth noting this is before tax income also. If you include the impact of the tax cuts in 2008, 2009 and 2010 then the increase in net incomes is even greater.