Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which To par has a Country of australia, and a Year(s) won of 1990?

### Inputs:
table_name: table, columns: ['Player', 'Country', 'Year(s) won', 'Total', 'To par']

### Response:
SELECT MIN To par FROM table WHERE Country = australia AND Year(s) won = 1990