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:
| Date | Opponent | Score | Loss | Attendance | Record |
| --- | --- | --- | --- | --- | --- |
| April 1 | Yankees | 10 - 1 | Lidle (0-1) | 15176.0 | 0-2 |
| April 2 | Yankees | 9 - 7 | Hendrickson (0-1) | 16222.0 | 0-3 |
| April 4 | @ Twins | 7 - 2 | Reed (0-1) | 48617.0 | 1-3 |
| April 5 | @ Twins | 4 - 3 (11) | Guardado (0-1) | 31421.0 | 2-3 |
| April 6 | @ Twins | 8 - 1 | Radke (1-1) | 23549.0 | 3-3 |
| April 8 | Red Sox | 8 - 4 | Lowe (1-1) | 13147.0 | 4-3 |
| April 9 | Red Sox | 10 - 5 | Fossum (1-1) | 13099.0 | 5-3 |
| April 10 | Red Sox | 8 - 7 | Politte (0-1) | 13779.0 | 5-4 |
| April 11 | Twins | 6 - 4 | Lidle (1-2) | 13237.0 | 5-5 |
| April 12 | Twins | 9 - 6 | Escobar (0-1) | 14118.0 | 5-6 |
| April 13 | Twins | 9 - 3 | Hendrickson (1-2) | 13333.0 | 5-7 |
| April 14 | @ Yankees | 10 - 9 | Lopez (0-1) | 30761.0 | 5-8 |
| April 15 | @ Yankees | 5 - 0 | Halladay (0-2) | 33833.0 | 5-9 |
| April 16 | @ Yankees | 7 - 6 | Hitchcock (0-1) | 25831.0 | 6-9 |
| April 17 | @ Yankees | 4 - 0 | Walker (1-1) | 32057.0 | 6-10 |
| April 18 | @ Red Sox | 7 - 3 | Tam (0-1) | 31440.0 | 6-11 |
| April 19 | @ Red Sox | 7 - 2 | Sturtze (2-1) | 32329.0 | 6-12 |
| April 20 | @ Red Sox | 6 - 5 | Politte (0-2) | 29579.0 | 6-13 |
| April 21 | @ Red Sox | 11 - 6 | Burkett (1-1) | 34370.0 | 7-13 |
| April 22 | @ Devil Rays | 4 - 3 | Kershner (0-1) | 10013.0 | 7-14 |
| April 23 | @ Devil Rays | 4 - 3 | Hendrickson (1-3) | 9221.0 | 7-15 |
| April 24 | @ Devil Rays | 5 - 3 | Sosa (1-2) | 8618.0 | 8-15 |
| April 25 | Royals | 6 - 5 | Carrasco (1-1) | 16417.0 | 9-15 |
| April 26 | Royals | 9 - 6 | Tam (0-2) | 17197.0 | 9-16 |
| April 27 | Royals | 10 - 9 | MacDougal (1-1) | 17059.0 | 10-16 |
| April 29 | Rangers | 16 - 11 | Hendrickson (1-4) | 48097.0 | 10-17 |
| April 30 | Rangers | 11 - 3 | Sturtze (3-2) | 16021.0 | 10-18 |
Question:
What was the average attendance at a game when the record was 6-13?
Answer:
29579.0