Table: malisse_match_stats
Columns: outcome
year
surface
opponent
score

Question: What year was the match were xavier malisse was the runner-up against lleyton hewitt?
SQL: SELECT "year" FROM malisse_match_stats WHERE "outcome" = 'runner-up' AND "opponent" = 'lleyton hewitt'

Question: What year was the match against filippo volandri where xavier malisse was runner-up?
SQL: SELECT "year" FROM malisse_match_stats WHERE "outcome" = 'runner-up' AND "opponent" = 'filippo volandri'