<Table> <Tr> <Td_colspan="3"> </Td> </Tr> <Tr> <Th> Financial year </Th> <Th>% of GDP </Th> <Th> Current price ($billions) </Th> </Tr> <Tr> <Td> 1981--82 </Td> <Td> 6.3 </Td> <Td> 10.8 </Td> </Tr> <Tr> <Td> 1991--92 </Td> <Td> 7.2 </Td> <Td> 30.5 </Td> </Tr> <Tr> <Td> 2001--02 </Td> <Td> 8.4 </Td> <Td> 63.1 </Td> </Tr> <Tr> <Td> 2008--09 </Td> <Td> 9.0 </Td> <Td> 114.4 </Td> </Tr> <Tr> <Td> 2009--10 </Td> <Td> 9.4 </Td> <Td> 121.7 </Td> </Tr> <Tr> <Td> 2010--11 </Td> <Td> 9.3 </Td> <Td> 131.6 </Td> </Tr> <Tr> <Td> 2011--12 </Td> <Td> 9.5 </Td> <Td> 142.0 </Td> </Tr> <Tr> <Td> 2012--13 </Td> <Td> 9.7 </Td> <Td> 147.0 </Td> </Tr> <Tr> <Td> 2013--14 </Td> <Td> 9.8 </Td> <Td> 154.6 </Td> </Tr> <Tr> <Td> 2014--15 </Td> <Td> 10.0 </Td> <Td> 161.6 </Td> </Tr> <Tr> <Td_colspan="3"> Source: Australian Institute of Health and Welfare </Td> </Tr> </Table> <Tr> <Th> Financial year </Th> <Th>% of GDP </Th> <Th> Current price ($billions) </Th> </Tr> <Tr> <Td> 1981--82 </Td> <Td> 6.3 </Td> <Td> 10.8 </Td> </Tr> <Tr> <Td> 1991--92 </Td> <Td> 7.2 </Td> <Td> 30.5 </Td> </Tr>

When did private health insurance start in australia