What ship size had a cargo value of $31,750 in 2006?
CREATE TABLE table_name_57 (ship_size VARCHAR)
SELECT ship_size FROM table_name_57 WHERE 2006 = "$31,750"
### Context: CREATE TABLE table_name_57 (ship_size VARCHAR) ### Question: What ship size had a cargo value of $31,750 in 2006? ### Answer: SELECT ship_size FROM table_name_57 WHERE 2006 = "$31,750"