Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1618358_1 (over_gdp__in__percentage_ VARCHAR, stamp_duty_reserve_tax VARCHAR)

### Question ###
When the stamp duty reserve tax is 3,669 what is the percentage over gdp?

### Accurate SQL ###

SELECT over_gdp__in__percentage_ FROM table_1618358_1 WHERE stamp_duty_reserve_tax = "3,669"