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:
| Week of | Tournament | Champion | Runner-up | Semifinalists | Quarterfinalists |
| --- | --- | --- | --- | --- | --- |
| 15 September | Volvo Championships Los Angeles, United States | John McEnroe 6–2, 6–3 | Stefan Edberg | Peter Lundgren Brad Gilbert | Derrick Rostagno Jaime Yzaga David Pate Pat Cash |
| 15 September | Volvo Championships Los Angeles, United States | Stefan Edberg Anders Järryd 3–6, 7–5, 7–6 | Peter Fleming John McEnroe | Peter Lundgren Brad Gilbert | Derrick Rostagno Jaime Yzaga David Pate Pat Cash |
| 22 September | Transamerica Open San Francisco, United States | John McEnroe 7–6, 6–3 | Jimmy Connors | Stefan Edberg Anders Järryd | Jim Grabb John Sadri David Pate Peter Lundgren |
| 22 September | Transamerica Open San Francisco, United States | Peter Fleming John McEnroe 6–4, 7–6 | Mike De Palmer Gary Donnelly | Stefan Edberg Anders Järryd | Jim Grabb John Sadri David Pate Peter Lundgren |
| 22 September | Torneo Godo Marlboro Barcelona , Spain | Kent Carlsson 6–2, 6–2, 6–0 | Andreas Maurer | Horst Skoff Tomáš Šmíd | Milan Šrejber David de Miguel-Lapiedra Guy Forget |
Question:
How many champions are shown for the runner-up of stefan edberg?
Answer:
1.0