Table schema:
CREATE TABLE table_name_31 (production_year VARCHAR)

Question: What is the average 2002 value for Sunflower, which had a 2010 value less than 5587 and a 2007 value greater than 546?
SQL: SELECT AVG(2002) FROM table_name_31 WHERE 2010 < 5587 AND production_year = "sunflower" AND 2007 > 546