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 | Wrestler | No. of reigns | Combined\ndefenses | Combined\ndays |
| --- | --- | --- | --- | --- |
| 1 | Matt Jackson† | 3 | 25 | 1386+ |
| 1 | Nick Jackson† | 3 | 25 | 1386+ |
| 3 | El Generico | 5 | 12 | 637 |
| 4 | Super Dragon | 6 | 3 | 609 |
| 5 | Scott Lost | 5 | 14 | 578 |
| 6 | Chris Bosh | 3 | 11 | 433 |
| 7 | Paul London | 1 | 5 | 335 |
| 8 | Davey Richards | 3 | 1 | 324 |
| 9 | Kevin Steen | 3 | 4 | 315 |
| 10 | Player Uno | 1 | 2 | 232 |
| 10 | Stupefied | 1 | 2 | 232 |
| 12 | Joey Ryan | 3 | 3 | 165 |
| 13 | Roderick Strong | 3 | 1 | 121 |
| 14 | Quicksilver | 3 | 2 | 120 |
| 15 | B-Boy | 3 | 1 | 84 |
| 16 | Pac | 1 | 1 | 71 |
| 17 | Excalibur | 1 | 1 | 63 |
| 18 | Human Tornado | 1 | 1 | 56 |
| 18 | Jimmy Jacobs | 1 | 0 | 56 |
| 18 | Tyler Black | 1 | 0 | 56 |
| 21 | Jack Evans | 1 | 0 | 49 |
| 22 | Homicide | 1 | 0 | 28 |
| 23 | Scorpio Sky | 1 | 0 | 1 |
| 24 | Brian Cage | 1 | 0 | <1 |
| 24 | Michael Elgin | 1 | 0 | <1 |
Question:
what is the difference in the number of combined days between kevin steen and davey richards?
Answer:
9