user: Question: Tell me the WL doubles with a debut of 1999
Columns: ['Player', 'W-L (Total)', 'W-L (Singles)', 'W-L (Doubles)', 'Ties', 'Debut', 'Years Played']
Types: ['text', 'text', 'text', 'text', 'real', 'real', 'real']
Sample row: ['Georgi Arabov', '3–0', '1–0', '2–0', 3.0, 1995.0, 1.0]
SQL:

assistant: SELECT "W-L (Doubles)" FROM "Table" WHERE "Debut" = 1999.0;