user: Question: What year was the match were xavier malisse was the Runner-up against Lleyton Hewitt?
Columns: ['Outcome', 'Year', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', '2 November 1998', 'Clay', 'Jiří Novák', '3–6, 3–6']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Outcome" = 'Runner-up' AND "Opponent" = 'Lleyton Hewitt';