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 |
| --- | --- | --- | --- | --- | --- | --- |
| Collingwood | 25.19 (169) | Hawthorn | 8.16 (64) | Victoria Park | 22903.0 | 30 June 1979 |
| Carlton | 21.12 (138) | Richmond | 12.10 (82) | Princes Park | 21792.0 | 30 June 1979 |
| North Melbourne | 8.21 (69) | Footscray | 12.9 (81) | Arden Street Oval | 13925.0 | 30 June 1979 |
| South Melbourne | 15.20 (110) | Fitzroy | 20.16 (136) | Lake Oval | 13850.0 | 30 June 1979 |
| St Kilda | 9.12 (66) | Essendon | 15.15 (105) | Moorabbin Oval | 18802.0 | 30 June 1979 |
| Geelong | 16.12 (108) | Melbourne | 9.3 (57) | VFL Park | 13272.0 | 30 June 1979 |
Question:
What is the smallest crowd of the away team that scored 12.9 (81)?
Answer:
13925.0