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 |
| --- | --- | --- | --- | --- | --- | --- |
| St Kilda | 8.5 (53) | South Melbourne | 11.16 (82) | Junction Oval | 10150.0 | 6 August 1955 |
| Footscray | 10.13 (73) | Geelong | 10.16 (76) | Western Oval | 33902.0 | 6 August 1955 |
| Fitzroy | 6.17 (53) | Richmond | 11.9 (75) | Brunswick Street Oval | 14000.0 | 6 August 1955 |
| North Melbourne | 8.12 (60) | Hawthorn | 8.5 (53) | Arden Street Oval | 9000.0 | 6 August 1955 |
| Melbourne | 16.23 (119) | Essendon | 7.12 (54) | MCG | 49352.0 | 6 August 1955 |
| Collingwood | 12.17 (89) | Carlton | 7.10 (52) | Victoria Park | 28000.0 | 6 August 1955 |
Question:
What is the average crowd size when the home team is North Melbourne?
Answer:
9000.0