What is the enrollment ratio for preschool in the region where enrollment ratio for tertiary is 29.55?
create table table_25042332_22 (preschool__0_5_years_ varchar, tertiary__18_24_years_ varchar, PRIMARY KEY (preschool__0_5_years_))
select preschool__0_5_years_ from table_25042332_22 where tertiary__18_24_years_ = "29.55"