The population isn't a relevant part of the argument, Mexico has 130 million people and has a smaller economy than Australia. After the top 6 or 7 economies, th

The population isn't a relevant part of the argument, Mexico has 130 million people and has a smaller economy than Australia. After the top 6 or 7 economies, the next 6 or 7 are all comparable in size. But more importantly, because of the high GDP per capita and low income inequality, Australians are wealthy with lots of disposable income. And so most international marketplaces see disproportionately high amounts of Australian spending when considering population size. For instance, where I work, the top 5 spending countries are the US, Canada, Australia, UK, China in that order.