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 | 7.11 (53) | South Melbourne | 10.21 (81) | Junction Oval | 15000.0 | 14 August 1926 |
| Collingwood | 16.8 (104) | Hawthorn | 3.10 (28) | Victoria Park | 7000.0 | 14 August 1926 |
| Carlton | 12.10 (82) | Geelong | 10.15 (75) | Princes Park | 25000.0 | 14 August 1926 |
| North Melbourne | 10.7 (67) | Melbourne | 9.16 (70) | Arden Street Oval | 6000.0 | 14 August 1926 |
| Footscray | 8.15 (63) | Fitzroy | 14.21 (105) | Western Oval | 10000.0 | 14 August 1926 |
| Richmond | 8.14 (62) | Essendon | 10.7 (67) | Punt Road Oval | 20000.0 | 14 August 1926 |
Question:
What is the sum of all the crowds that watched North Melbourne at home?
Answer:
6000.0