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 cars_data (year VARCHAR, weight INTEGER)

### Question ###
In which years cars were produced weighing no less than 3000 and no more than 4000 ?

### Accurate SQL ###

SELECT DISTINCT year FROM cars_data WHERE weight BETWEEN 3000 AND 4000