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:
| Home team | Home team score | Away team | Away team score | Venue | Crowd | Date |
| --- | --- | --- | --- | --- | --- | --- |
| Hawthorn | 3.13 (31) | Richmond | 8.6 (54) | Glenferrie Oval | 13000.0 | 14 July 1956 |
| Footscray | 11.13 (79) | St Kilda | 13.2 (80) | Western Oval | 25414.0 | 14 July 1956 |
| Essendon | 9.13 (67) | Fitzroy | 8.10 (58) | Windy Hill | 14000.0 | 14 July 1956 |
| North Melbourne | 7.5 (47) | Geelong | 19.15 (129) | Arden Street Oval | 9000.0 | 14 July 1956 |
| South Melbourne | 10.9 (69) | Collingwood | 11.9 (75) | Lake Oval | 25000.0 | 14 July 1956 |
| Melbourne | 14.10 (94) | Carlton | 12.7 (79) | MCG | 46022.0 | 14 July 1956 |
Question:
What is the sum of crowd(s) when richmond is the away squad?
Answer:
13000.0