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 | Location | Time ( ET ) | Result | Record |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Sun. Sep. 5 | San Francisco 49ers | Three Rivers Stadium | 1:00pm | L 24–13 | 0–1 |
| 2.0 | Sun. Sep. 12 | at Los Angeles Rams | Anaheim Stadium | 4:00pm | L 27–0 | 0–2 |
| 3.0 | Sun. Sep. 19 | Cincinnati Bengals | Three Rivers Stadium | 1:00pm | W 34–7 | 1–2 |
| 4.0 | Mon. Sep. 27 | at Atlanta Falcons | Georgia Dome | 9:00pm | W 45–17 | 2–2 |
| 5.0 | Sun. Oct. 3 | Bye | Bye | Bye | Bye | Bye |
| 6.0 | Sun. Oct. 10 | San Diego Chargers | Three Rivers Stadium | 4:00pm | W 16–3 | 3–2 |
| 7.0 | Sun. Oct. 17 | New Orleans Saints | Three Rivers Stadium | 1:00pm | W 37–14 | 4–2 |
| 8.0 | Sun. Oct. 24 | at Cleveland Browns | Cleveland Municipal Stadium | 4:00pm | L 28–23 | 4–3 |
| 9.0 | Sun. Oct. 31 | Bye | Bye | Bye | Bye | Bye |
| 10.0 | Sun. Nov. 7 | at Cincinnati Bengals | Riverfront Stadium | 1:00pm | W 24–16 | 5–3 |
| 11.0 | Mon. Nov. 15 | Buffalo Bills | Three Rivers Stadium | 9:00pm | W 23–0 | 6–3 |
| 12.0 | Sun. Nov. 21 | at Denver Broncos | Mile High Stadium | 4:00pm | L 37–13 | 6–4 |
| 13.0 | Sun. Nov. 28 | at Houston Oilers | Astrodome | 8:00pm | L 23–3 | 6–5 |
| 14.0 | Sun. Dec. 5 | New England Patriots | Three Rivers Stadium | 1:00pm | W 17–14 | 7–5 |
| 15.0 | Mon. Dec. 13 | at Miami Dolphins | Joe Robbie Stadium | 9:00pm | W 21–20 | 8–5 |
| 16.0 | Sun. Dec. 19 | Houston Oilers | Three Rivers Stadium | 1:00pm | L 26–17 | 8–6 |
| 17.0 | Sun. Dec. 26 | at Seattle Seahawks | Kingdome | 4:00pm | L 16–6 | 8–7 |
| 18.0 | Sun. Jan. 2 | Cleveland Browns | Three Rivers Stadium | 1:00pm | W 16–9 | 9–7 |
Question:
What is the earliest week that shows a record of 8–5?
Answer:
15.0