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:
| Round | Circuit | State | Date | Winning driver |
| --- | --- | --- | --- | --- |
| 1.0 | Sandown | Victoria | 13 April | John Smith |
| 2.0 | Adelaide International Raceway | South Australia | 27 April | John Smith |
| 3.0 | Calder Park | Victoria | 1 June | John Smith |
| 4.0 | Oran Park | New South Wales | 13 July | John Smith |
| 5.0 | Lakeside | Queensland | 27 July | John Smith |
Question:
How many rounds were run at Calder Park?
Answer:
1.0