Well first of all let me clear that up... it's 400,00 adults didn't read a single book in 2016 in the country of New Zealand. I immediately thought..Wow! That's a lot of people or adults... I looked up the total population of New Zealand in 2016 and found it was 4,693,000. Out of that number about 76% were adults. So... that's about less than 1% of adults that didn't read - per the article 88% of adults did read a book. That's interesting.
I wondered how many adults did or did not read a book in the USA. I found from a Pew Research Study (http://www.pewresearch.org/fact-tank/2016/11/23/who-doesnt-read-books-in-america/) that 26% of adults in the USA did not read a book in 2016. That's a higher percentage than New Zealand.
I guess this is a great reminder to pick up a book and read! Do not contribute to the non-reader club.