user: Question: What's the earliest year that had a category of Best Supporting Actress at the Asian Film Awards?
Columns: ['Year', 'Award', 'Category', 'Nominated work', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1999.0, 'SBS Drama Awards', 'Best New Actress', 'Happy Together', 'Won']
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "Category" = 'Best Supporting Actress' AND "Award" = 'Asian Film Awards';