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:
| Name | Nation | Position | League Apps | League Goals | FA Cup Apps | FA Cup Goals | Total Apps | Total Goals |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Ned Barkas | England | DF | 4 | 0 | 0 | 0 | 4 | 0 |
| Harry Brough | England | DF | 9 | 0 | 0 | 0 | 9 | 0 |
| George Brown | England | FW | 6 | 4 | 0 | 0 | 6 | 4 |
| Jack Byers | England | MF | 5 | 1 | 0 | 0 | 5 | 1 |
| Harry Cawthorne | England | DF | 5 | 0 | 0 | 0 | 5 | 0 |
| Ted Davis | England | GK | 27 | 0 | 7 | 0 | 34 | 0 |
| Ernie Islip | England | FW | 34 | 11 | 9 | 4 | 43 | 15 |
| Billy Johnston | England | FW | 21 | 2 | 2 | 0 | 23 | 2 |
| Robert Jones | England | MF | 2 | 1 | 0 | 0 | 2 | 1 |
| Frank Mann | England | FW | 40 | 5 | 8 | 4 | 48 | 9 |
| Len Marlow | England | FW | 1 | 0 | 0 | 0 | 1 | 0 |
| Colin McKay | Scotland | DF | 14 | 2 | 0 | 0 | 14 | 2 |
| Sandy Mutch | Scotland | GK | 15 | 0 | 2 | 0 | 17 | 0 |
| Stan Pearson | England | MF | 1 | 0 | 1 | 0 | 2 | 0 |
| George Richardson | England | MF | 14 | 1 | 8 | 1 | 22 | 2 |
| Charlie Slade | England | DF | 25 | 0 | 9 | 0 | 34 | 0 |
| Billy E. Smith | England | FW | 1 | 0 | 0 | 0 | 1 | 0 |
| Billy H. Smith | England | MF | 40 | 8 | 9 | 4 | 49 | 12 |
| Clem Stephenson | England | FW | 39 | 9 | 9 | 6 | 48 | 15 |
| Jack Swann | England | FW | 9 | 3 | 0 | 0 | 9 | 3 |
| Sam Wadsworth | England | DF | 39 | 1 | 9 | 0 | 48 | 1 |
| Billy Watson | England | DF | 36 | 0 | 9 | 1 | 45 | 1 |
| Tom Wilson | England | DF | 39 | 1 | 9 | 0 | 48 | 1 |
| James Wood | England | DF | 36 | 0 | 9 | 0 | 45 | 0 |
Question:
what is the average number of scotland's total apps?
Answer:
15.5