For the city whose land area was 135.09, what was the total population density?
create table table_22916979_1 (population_density__people_per_mi_2__ varchar, land_area__mi_2__ varchar, PRIMARY KEY (population_density__people_per_mi_2__))
select population_density__people_per_mi_2__ from table_22916979_1 where land_area__mi_2__ = "135.09"