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 | Ground | Date | Crowd |
| --- | --- | --- | --- | --- | --- | --- |
| Collingwood | 12.14 (86) | St Kilda | 10.8 (68) | Colonial Stadium | Friday, 16 February | 30072.0 |
| West Coast | 6.11 (47) | Kangaroos | 14.12 (96) | Subiaco Oval | Friday, 16 February | 16905.0 |
| Kangaroos | 14.12 (96) | St Kilda | 12.9 (81) | Manuka Oval | Saturday, 24 February | 8157.0 |
| West Coast | 12.6 (78) | Collingwood | 12.8 (80) | Subiaco Oval | Saturday, 24 February | 16090.0 |
| St Kilda | 19.9 (123) | West Coast | 15.7 (97) | Colonial Stadium | Friday, 2 March | 8642.0 |
| Kangaroos | 18.12 (120) | Collingwood | 14.8 (92) | Colonial Stadium | Saturday, 3 March | 28983.0 |
Question:
Name the Away team score which has an Away team of st kilda, and a Crowd of 8157?
Answer:
12.9 (81)