Looking at your source, I think you have confused parliament with government, which in our Westminster system is the council of ministers advising the Governor-General, as per the Constitution. Scott Morrison's government in 2018 comprised 23 members, 7 of whom were women. That's almost a third.
There were only six female members of Rudd’s government, and four in Gillard’s — including Julia Gillard. The facts suggest that the LNP coalition — which is not a party as you claim — gives important positions to women more than does the ALP.
Tony Abbott, granted, was an aberration, but the fact that he was booted out by his own party says a lot.
The graph in the source you quote shows Australia between the United Kingdom and Canada.