What is the migration rating when trade is 5.7?
CREATE TABLE table_13677808_1 (migration VARCHAR, trade VARCHAR)
SELECT migration FROM table_13677808_1 WHERE trade = "5.7"
### Context: CREATE TABLE table_13677808_1 (migration VARCHAR, trade VARCHAR) ### Question: What is the migration rating when trade is 5.7? ### Answer: SELECT migration FROM table_13677808_1 WHERE trade = "5.7"