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 |
| --- | --- | --- | --- | --- | --- | --- |
| Melbourne | 11.18 (84) | Richmond | 17.19 (121) | MCG | 21840.0 | 22 April 1939 |
| Collingwood | 18.14 (122) | Geelong | 14.7 (91) | Victoria Park | 17500.0 | 22 April 1939 |
| Carlton | 20.22 (142) | South Melbourne | 13.10 (88) | Princes Park | 25000.0 | 22 April 1939 |
| St Kilda | 18.20 (128) | Hawthorn | 9.13 (67) | Junction Oval | 15500.0 | 22 April 1939 |
| North Melbourne | 11.9 (75) | Fitzroy | 9.12 (66) | Arden Street Oval | 14000.0 | 22 April 1939 |
| Footscray | 14.18 (102) | Essendon | 15.17 (107) | Western Oval | 23000.0 | 22 April 1939 |
Question:
When the home team was carlton how many people were in the crowd?
Answer:
25000.0