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# | Rank# | Site | TV | Result | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| September 18 | SMU* | #10 | Oklahoma Memorial Stadium • Norman, OK |  | W 30–0 | 53,545 |
| September 25 | at Pittsburgh* | #11 | Pitt Stadium • Pittsburgh, PA |  | W 55–29 | 34,916 |
| October 2 | #17 USC* | #8 | Oklahoma Memorial Stadium • Norman, OK |  | W 33–20 | 62,351 |
| October 9 | vs. #3 Texas* | #8 | Cotton Bowl • Dallas, TX (Red River Shootout) | CBS | W 48–27 | 72,032 |
| October 16 | #6 Colorado | #2 | Oklahoma Memorial Stadium • Norman, OK |  | W 45–17 | 62,501 |
| October 23 | at Kansas State | #2 | KSU Stadium • Manhattan, KS |  | W 75–28 | 37,198 |
| October 30 | Iowa State | #2 | Oklahoma Memorial Stadium • Norman, OK |  | W 39–7 | 60,477 |
| November 6 | at Missouri | #2 | Memorial Stadium • Columbia, MO |  | W 20–3 | 55,098 |
| November 13 | Kansas | #2 | Oklahoma Memorial Stadium • Norman, OK | ABC | W 56–10 | 54,347 |
| November 25 | #1 Nebraska | #2 | Oklahoma Memorial Stadium • Norman, OK (Rivalry) | ABC | L 31–35 | 62,884 |
| December 4 | at Oklahoma State | #3 | Lewis Field • Stillwater, OK (Bedlam Series) |  | W 58–14 | 36,571 |
| January 1 | vs. #5 Auburn* | #3 | Tulane Stadium • New Orleans, LA (Sugar Bowl) | ABC | W 40–22 | 84,031 |
Question:
how many consecutive times was the rank #2?
Answer:
6