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:
| Rank | Rider | Team | Time | Speed |
| --- | --- | --- | --- | --- |
| 1.0 | Michael Rutter | Ducati | 21' 52.169 | 122.609 mph |
| 2.0 | Guy Martin | Honda | + 0.810 | 122.534 mph |
| 3.0 | John McGuinness | Honda | + 0.956 | 122.510 mph |
| 4.0 | Steve Plater | Yamaha YZF-R | + 1.192 | 121.658 mph |
| 5.0 | Gary Johnson | Honda | + 10.257 | 120.979 mph |
| 6.0 | Bruce Anstey | Suzuki GSX-R1000 | + 17.682 | 120.979 mph |
| 7.0 | Ian Hutchinson | Yamaha | + 17.970 | 120.953 mph |
| 8.0 | Ryan Farquhar | Kawasaki ZX-10R | + 18.386 | 120.915 mph |
| 9.0 | Denver Robb | Suzuki | + 27.118 | 120.127 mph |
| 10.0 | Keith Amor | Honda | + 41.841 | 118.820 mph |
Question:
What is the rank of rider gary johnson, who had a speed of 120.979 mph?
Answer:
5.0