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:
| No. | Date | Tournament | Winning score | To par | Margin of victory | Runner(s)-up |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Oct 5, 2008 | Turning Stone Resort Championship | 72-68-70-69=279 | −9 | 1 stroke | Robert Allenby |
| 2.0 | Feb 15, 2009 | AT&T Pebble Beach National Pro-Am * | 65-69-67=201 | −15 | 4 strokes | Mike Weir |
| 3.0 | Feb 14, 2010 | AT&T Pebble Beach National Pro-Am (2) | 64-68-64-74=270 | −16 | 1 stroke | David Duval , J. B. Holmes |
| 4.0 | Sep 12, 2010 | BMW Championship | 68-70-68-69=275 | −9 | 1 stroke | Paul Casey |
| 5.0 | Aug 27, 2011 | The Barclays * | 66-63-65=194 | −19 | 2 strokes | Matt Kuchar |
| 6.0 | Jun 10, 2012 | FedEx St. Jude Classic | 70-68-67-66=271 | −9 | 1 stroke | John Merrick |
| 7.0 | Jan 8, 2013 | Hyundai Tournament of Champions * | 69-66-68=203 | −16 | 4 strokes | Steve Stricker |
Question:
What is the minimum number of the bmw championship tournament.
Answer:
4.0