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 | 22.15 (147) | Melbourne | 9.14 (68) | Princes Park | 10632.0 | 1 April 1978 |
| Footscray | 11.14 (80) | North Melbourne | 23.11 (149) | Western Oval | 20420.0 | 1 April 1978 |
| Fitzroy | 15.11 (101) | St Kilda | 16.13 (109) | Junction Oval | 17030.0 | 1 April 1978 |
| Essendon | 19.9 (123) | South Melbourne | 14.18 (102) | Windy Hill | 23562.0 | 1 April 1978 |
| Geelong | 11.10 (76) | Collingwood | 17.16 (118) | Kardinia Park | 27463.0 | 1 April 1978 |
| Richmond | 25.24 (174) | Carlton | 14.13 (97) | MCG | 49031.0 | 1 April 1978 |
Question:
What's the highest turnout when carlton was playing as the away team?
Answer:
49031.0