user: Question: What date did the Green-Communists receive 5.7%?
Columns: ['Date Released', 'Polling institute', 'Social Democratic', 'Socialist', 'Green-Communist', 'Peoples Party', 'Left Bloc', 'Lead']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['March 17, 2002', 'Election Results', '40.2% 105 seats', '37.8% 96 seats', '6.9% 12 seats', '8.7% 14 seats', '2.7% 3 seats', '2.4%']
SQL:

assistant: SELECT "Date Released" FROM "Table" WHERE "Green-Communist" = '5.7%';