https://www.stuff.co.nz/national/101732029/how-bad-are-foreign-drivers
So, there was one fatal crash for every 145,000 foreigners. And one fatal crash for every 17,900 Kiwis...
...How many of those foreigners actually drove on our roads? For that matter, how many Kiwis drove? How long did each person - tourist or New Zealander spend driving?
And some graphs ...