The table below is from the Australian Bureau of Statistics, release titled "Australian National Accounts: National Income, Expenditure and Product; Quarterly estimates of key economic flows in Australia, including gross domestic product (GDP), consumption, investment, income and saving".

https://www.abs.gov.au/statistics/economy/national-accounts/australian-national-accounts-national-income-expenditure-and-product/mar-2024

GDP per capita is measured by GDP/Population. What could explain the changes in GDP per capita presented in the table below?