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 |
| --- | --- | --- | --- | --- | --- | --- |
| Richmond | 22.11 (143) | South Melbourne | 13.16 (94) | MCG | 24307.0 | 25 August 1973 |
| Geelong | 17.11 (113) | Melbourne | 14.14 (98) | Kardinia Park | 15489.0 | 25 August 1973 |
| St Kilda | 16.18 (114) | North Melbourne | 14.12 (96) | Moorabbin Oval | 29257.0 | 25 August 1973 |
| Fitzroy | 13.22 (100) | Essendon | 9.23 (77) | Junction Oval | 14875.0 | 25 August 1973 |
| Footscray | 10.15 (75) | Carlton | 9.12 (66) | Western Oval | 18988.0 | 25 August 1973 |
| Collingwood | 16.10 (106) | Hawthorn | 13.10 (88) | VFL Park | 48059.0 | 25 August 1973 |
Question:
What is the average crowd size of Fitzroy's home team?
Answer:
14875.0