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_25983027_1 ( evapotranspiration__km_3__year_ VARCHAR, rainfall_by_volume__km_3__year_ VARCHAR )

### Question ###
In the region where the rainfall by volume (km 3 /year) was 13.2, what was the evapotranspiration (km 3 /year)?

### Accurate SQL ###

SELECT evapotranspiration__km_3__year_ FROM table_25983027_1 WHERE rainfall_by_volume__km_3__year_ = "13.2"