Some figures and stats of interest in here - https://www.reuters.com/article/worldNews/idUSKBN2C62WR
“Air New Zealand Ltd said of the 5,200 passengers booked on Monday, 59% were travelling to New Zealand.“
I’ve skipped over the more lopsided figure given earlier in the article as it seemed to apply to the week prior to the bubble, when more of the traffic is likely to be broader international returns, transiting in via Aus.