Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Player | Country | Year(s) won | Total | To par |
| --- | --- | --- | --- | --- |
| Hal Sutton | United States | 1983 | 146.0 | 2.0 |
| Lanny Wadkins | United States | 1977 | 148.0 | 4.0 |
| Lee Trevino | United States | 1974 , 1984 | 149.0 | 5.0 |
| Bob Tway | United States | 1986 | 149.0 | 5.0 |
| John Mahaffey | United States | 1978 | 150.0 | 6.0 |
| David Graham | Australia | 1979 | 153.0 | 9.0 |
Question:
What is Australia's highest total?
Answer:
153.0