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:
| Year | Artist | Composition | Mintage | Issue Price |
| --- | --- | --- | --- | --- |
| 2007.0 | Steve Hepburn | 99.99% pure gold | 200.0 | $5,999.95 |
| 2008.0 | Royal Canadian Mint Engravers | 99.99% pure gold | 250.0 | $8,159.95 |
| 2009.0 | Royal Canadian Mint Engravers | 99.99% pure gold | 200.0 | $10,199.95 |
| 2010.0 | Vancouver 2010 Design Team | 99.99% pure gold | 210.0 | $9,495.95 |
| 2010.0 | Royal Canadian Mint Engravers | 99.99% pure gold | 200.0 | $9,495.95 |
Question:
What is the sum of Artist Steve Hepburn's Mintage?
Answer:
200.0