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 | Venue | Result | Attendance |
| --- | --- | --- | --- | --- |
| 2 August 2008 | Dunfermline Athletic | Firhill | 1-0 | 3092.0 |
| 9 August 2008 | Airdrie Utd | New Broomfield | 1–0 | 2165.0 |
| 17 August 2008 | Queen of the South | Palmerston Park | 0–2 | 3272.0 |
| 23 August 2008 | St. Johnstone | Firhill | 4–0 | 2961.0 |
| 30 August 2008 | Ross County | Firhill | 0–1 | 2945.0 |
| 13 September 2008 | Clyde | Broadwood | 1–1 | 2191.0 |
| 20 September 2008 | Greenock Morton | Firhill | 2–1 | 3368.0 |
| 27 September 2008 | Livingston | Almondvale | 1–3 | 2150.0 |
| 4 October 2008 | Dundee | Firhill | 0–0 | 2556.0 |
| 18 October 2008 | Dunfermline Athletic | East End Park | 0–1 | 3242.0 |
| 25 October 2008 | St. Johnstone | McDiarmid Park | 0–3 | 2771.0 |
| 1 November 2008 | Queen of the South | Firhill | 2–0 | 2971.0 |
| 8 November 2008 | Clyde | Firhill | 2–0 | 3003.0 |
| 22 November 2008 | Livingston | Firhill | 2–1 | 2416.0 |
| 25 November 2008 | Ross County | Victoria Park | 0–1 | 1625.0 |
| 13 December 2008 | Airdrie United | Firhill | 2–1 | 2296.0 |
| 20 December 2008 | Dundee | Dens Park | 0–0 | 3569.0 |
| 27 December 2008 | Ross County | Firhill | 0–2 | 2465.0 |
| 30 December 2008 | Greenock Morton | Cappielow | 0–2 | 2385.0 |
| 3 January 2009 | Clyde | Broadwood | 4–2 | 2016.0 |
| 17 January 2009 | St. Johnstone | Firhill | 0–0 | 3353.0 |
| 24 January 2009 | Queen of the South | Palmerston Park | 2–2 | 2811.0 |
| 31 January 2009 | Airdrie United | New Broomfield | 1–0 | 1988.0 |
| 14 February 2009 | Dunfermline Atthletic | Firhill | 2–3 | 2957.0 |
| 21 February 2009 | Greenock Morton | Firhill | 1–0 | 3348.0 |
| 28 February 2009 | Livingston | Almondvale | 4–2 | 2876.0 |
| 7 March 2009 | Clyde | Firhill | 0–1 | 3579.0 |
| 10 March 2009 | Ross County | Victoria Park | 2–0 | 2017.0 |
| 14 March 2009 | Dunfermline Atthletic | East End Park | 1–0 | 2736.0 |
| 22 March 2009 | Dundee | Firhill | 1–1 | 3303.0 |
| 4 April 2009 | St. Johnstone | McDiarmid Park | 1–1 | 4909.0 |
| 11 April 2009 | Queen of the South | Firhill | 0–2 | 2830.0 |
| 18 April 2009 | Greenock Morton | Cappielow | 1–0 | 3323.0 |
| 25 April 2009 | Livingston | Firhill | 1–0 | 2803.0 |
| 2 May 2009 | Airdrie United | Firhill | 0–1 | 3255.0 |
| 9 May 2009 | Dundee | Dens Park | 0–4 | 2831.0 |
Question:
What was the attendance on 31 January 2009 when the opponent was Airdrie United?
Answer:
1988.0