user: Question: What is the value in 2006 when Career Statistics is in Career W-L?
Columns: ['Tournament', '1998', '1999', '2000', '2001', '2002', '2003', '2004', '2005', '2006', '2007', '2008', '2009', 'Career W-L']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments']
SQL:

assistant: SELECT "2006" FROM "Table" WHERE "Career W-L" = 'Career Statistics';