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:
| Week | Date | Opponent | Result | Venue | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1.0 | September 13, 1964 | Chicago Bears | W 23–12 | City Stadium | 42327.0 |
| 2.0 | September 20, 1964 | Baltimore Colts | L 21–20 | City Stadium | 42327.0 |
| 3.0 | September 28, 1964 | at Detroit Lions | W 14–10 | Tiger Stadium | 59203.0 |
| 4.0 | October 4, 1964 | Minnesota Vikings | L 24–23 | City Stadium | 42327.0 |
| 5.0 | October 11, 1964 | San Francisco 49ers | W 24–14 | Milwaukee County Stadium | 47380.0 |
| 6.0 | October 18, 1964 | at Baltimore Colts | L 24–21 | Memorial Stadium | 60213.0 |
| 7.0 | October 25, 1964 | Los Angeles Rams | L 27–17 | Milwaukee County Stadium | 47617.0 |
| 8.0 | November 1, 1964 | at Minnesota Vikings | W 42–13 | Metropolitan Stadium | 44278.0 |
| 9.0 | November 8, 1964 | Detroit Lions | W 30–7 | City Stadium | 42327.0 |
| 10.0 | November 15, 1964 | at San Francisco 49ers | L 24–14 | Kezar Stadium | 38483.0 |
| 11.0 | November 22, 1964 | Cleveland Browns | W 28–21 | Milwaukee County Stadium | 48065.0 |
| 12.0 | November 29, 1964 | at Dallas Cowboys | W 45–21 | Cotton Bowl | 44975.0 |
| 13.0 | December 5, 1964 | at Chicago Bears | W 17–3 | Wrigley Field | 43636.0 |
| 14.0 | December 13, 1964 | at Los Angeles Rams | T 24–24 | Los Angeles Memorial Coliseum | 40735.0 |
Question:
What is the average attendance at a week 4 game?
Answer:
42327.0