Oceania is a vast region made up largely of remote Pacific island nations, often with small populations and few mobile providers. Like the Caribbean, mobile plans often contain only small amounts of data and the majority of countries appear in the more expensive bottom end of the global list, with Samoa the most expensive in the region at $30.09.
Australia, by far the biggest country in the region, is also the cheapest when it comes to the price of 1GB of mobile data with an average of $2.47. New Zealand, which you might expect to be similar in terms of price to Australia, is considerably more expensive at $9.79 and sits in the more expensive half of the global table.
Australia * New Zealand