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 |
| --- | --- | --- | --- | --- | --- | --- |
| Geelong | 10.12 (72) | Melbourne | 14.22 (106) | Kardinia Park | 20247.0 | 22 May 1971 |
| South Melbourne | 13.11 (89) | Fitzroy | 19.19 (133) | Lake Oval | 15147.0 | 22 May 1971 |
| Footscray | 17.17 (119) | Essendon | 12.7 (79) | Western Oval | 21295.0 | 22 May 1971 |
| St Kilda | 20.15 (135) | Collingwood | 13.10 (88) | Moorabbin Oval | 38127.0 | 22 May 1971 |
| Richmond | 16.26 (122) | Carlton | 9.16 (70) | MCG | 52783.0 | 22 May 1971 |
| Hawthorn | 22.15 (147) | North Melbourne | 7.10 (52) | VFL Park | 14860.0 | 22 May 1971 |
Question:
What was the top crowd when essendon played away?
Answer:
21295.0