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:
| Size | Density | Tracks | Coercivity | Unformatted capacity per side |
| --- | --- | --- | --- | --- |
| 3½in | single | 40.0 | 600Oe | 250KB |
| 3½in | double | 80.0 | 600Oe (300Oe) | 500KB |
| 3½in | high | 80.0 | 750Oe (600Oe) | 1000KB |
| 3½in | extended | 80.0 | 900Oe | 2000KB |
| 5¼in | single/double | 40.0 | 300Oe | 250KB |
| 5¼in | quad | 80.0 | 300Oe | 500KB |
| 5¼in | high | 80.0 | 600Oe | 750KB |
| 8in | single/double | 77.0 | 300Oe | 1000 KB |
Question:
How many tracks have a single density?
Answer:
1.0