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 | Attendance |
| --- | --- | --- | --- | --- |
| 1.0 | September 12, 1999 | Carolina Panthers | W 19-10 | 58,166 |
| 2.0 | September 19, 1999 | at San Francisco 49ers | L 21-28 | 67,685 |
| 3.0 | Bye | Bye | Bye | Bye |
| 4.0 | October 3, 1999 | at Chicago Bears | L 10-14 | 66,944 |
| 5.0 | October 10, 1999 | Atlanta Falcons | L 17-20 | 57,289 |
| 6.0 | October 17, 1999 | Tennessee Titans | L 21-24 | 51,875 |
| 7.0 | October 24, 1999 | at New York Giants | L 3-31 | 77,982 |
| 8.0 | October 31, 1999 | Cleveland Browns | L 16-21 | 48,817 |
| 9.0 | November 7, 1999 | Tampa Bay Buccaneers | L 16-31 | 47,129 |
| 10.0 | November 14, 1999 | San Francisco 49ers | W 24-6 | 52,198 |
| 11.0 | November 21, 1999 | at Jacksonville Jaguars | L 23-41 | 69,772 |
| 12.0 | November 28, 1999 | at St. Louis Rams | L 12-43 | 65,864 |
| 13.0 | December 5, 1999 | at Atlanta Falcons | L 12-35 | 62,568 |
| 14.0 | December 12, 1999 | St. Louis Rams | L 14-30 | 46,838 |
| 15.0 | December 19, 1999 | at Baltimore Ravens | L 8-31 | 67,597 |
| 16.0 | December 24, 1999 | Dallas Cowboys | W 31-24 | 47,835 |
| 17.0 | January 2, 2000 | at Carolina Panthers | L 13-45 | 56,929 |
Question:
What was the Attendance in Week 1?
Answer:
58166.0