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 | 7.9 (51) | St Kilda | 15.12 (102) | Glenferrie Oval | 12000.0 | 20 July 1929 |
| Geelong | 11.14 (80) | North Melbourne | 8.6 (54) | Corio Oval | 7000.0 | 20 July 1929 |
| Fitzroy | 9.15 (69) | Footscray | 12.16 (88) | Brunswick Street Oval | 10000.0 | 20 July 1929 |
| South Melbourne | 12.10 (82) | Melbourne | 9.15 (69) | Lake Oval | 15000.0 | 20 July 1929 |
| Richmond | 11.9 (75) | Collingwood | 16.21 (117) | Punt Road Oval | 33000.0 | 20 July 1929 |
| Essendon | 8.7 (55) | Carlton | 7.17 (59) | Windy Hill | 22000.0 | 20 July 1929 |
Question:
What was the average size of the crowd for matches held at Corio Oval?
Answer:
7000.0