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 | Record | Game Site | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | September 27, 1959 | Detroit Lions | W 21–9 | 1–0 | Memorial Stadium | 55588.0 |
| 2.0 | October 3, 1959 | Chicago Bears | L 21–26 | 1–1 | Memorial Stadium | 57557.0 |
| 3.0 | October 11, 1959 | at Detroit Lions | W 31–24 | 2–1 | Tiger Stadium | 54197.0 |
| 4.0 | October 18, 1959 | at Chicago Bears | W 21–7 | 3–1 | Wrigley Field | 48430.0 |
| 5.0 | October 25, 1959 | Green Bay Packers | W 38–21 | 4–1 | Memorial Stadium | 57557.0 |
| 6.0 | November 1, 1959 | Cleveland Browns | L 31–38 | 4–2 | Memorial Stadium | 57557.0 |
| 7.0 | November 8, 1959 | at Washington Redskins | L 24–27 | 4–3 | Griffith Stadium | 32773.0 |
| 8.0 | November 15, 1959 | at Green Bay Packers | W 28–24 | 5–3 | Milwaukee County Stadium | 25521.0 |
| 9.0 | November 22, 1959 | San Francisco 49ers | W 45–14 | 6–3 | Memorial Stadium | 57557.0 |
| 10.0 | November 29, 1959 | Los Angeles Rams | W 35–21 | 7–3 | Memorial Stadium | 57557.0 |
| 11.0 | December 5, 1959 | at San Francisco 49ers | W 34–14 | 8–3 | Kezar Stadium | 59075.0 |
| 12.0 | December 12, 1959 | at Los Angeles Rams | W 45–26 | 9–3 | Los Angeles Memorial Coliseum | 65528.0 |
Question:
Result of w 21–7 had what average week?
Answer:
4.0