In the region where the rainfall by volume (km 3 /year) was 13.2, what was the evapotranspiration (km 3 /year)?
create table table_25983027_1 (evapotranspiration__km_3__year_ varchar, rainfall_by_volume__km_3__year_ varchar, PRIMARY KEY (evapotranspiration__km_3__year_))
select evapotranspiration__km_3__year_ from table_25983027_1 where rainfall_by_volume__km_3__year_ = "13.2"