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:
| Players | Games Won | Games Lost | Total points | Grand Average | Best Winning Average | Best Run |
| --- | --- | --- | --- | --- | --- | --- |
| Cyrille Dion | 5.0 | 0.0 | 2500.0 | 12.76-202 | 20 | 138.0 |
| William Jakes | 4.0 | 1.0 | 2136.0 | 7.92-292 | 8.28-59 | 70.0 |
| Samuel May | 3.0 | 2.0 | 2295.0 | 8.103-274 | 12.20-40 | 130.0 |
| Amadee Guillett | 2.0 | 3.0 | 2056.0 | 6.160-316 | 7.3-71 | 62.0 |
| James Rooney | 1.0 | 4.0 | 1730.0 | 7.50-336 | 4.96-101 | 44.0 |
Question:
If the games won are 5, what is the best winning average?
Answer:
20.0