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:
| Stage | Winner | General classification | Points classification | Mountains classification | Young rider classification | Team classification |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Matthew Goss | Matthew Goss | Matthew Goss | Manuel Belletti | Michael Van Stayen | Team HTC-Columbia |
| 2.0 | Michael Van Stayen | Michael Van Stayen | Michael Van Stayen | Michael Tronborg Kristensen | Michael Van Stayen | Team HTC-Columbia |
| 3.0 | Matti Breschel | Matti Breschel | Matti Breschel | Michael Tronborg Kristensen | Sep Vanmarcke | Team Saxo Bank |
| 4.0 | Mark Renshaw | Matti Breschel | Matti Breschel | Michael Tronborg Kristensen | Sep Vanmarcke | Team Saxo Bank |
| 5.0 | Svein Tuft | Jakob Fuglsang | Matti Breschel | Michael Tronborg Kristensen | Rasmus Guldhammer | Team Saxo Bank |
| 6.0 | Hayden Roulston | Jakob Fuglsang | Matti Breschel | Michael Reihs | Rasmus Guldhammer | Team Saxo Bank |
Question:
When hayden roulston is the winner what is the stage?
Answer:
6.0