I believe the reason why can be found in the Opal File (go straight to 1979):
https://www.wakeupkiwi.com/the-opal-file.shtml
EWNZ
Tag Archives: RBNZ
Food is now a luxury
Note: Pigeon Post’s channel states “Back soon!” … watch this space …EWNZ
From Pigeon Post @ Youtube
Note: “price of bread up 70%, but the price of flour hasn’t changed … work that one out!”