CREATE TABLE table_name_30 (population VARCHAR2, height__m_ VARCHAR2, area___ha__ VARCHAR2)

What is the Population of the group that has a Height (m) of 15 and an Area (ha) of 00017 17?
SELECT population FROM table_name_30 WHERE height__m_ = 15 AND area___ha__ = "00017 17"
SELECT "population" FROM "table_name_30" WHERE "00017 17" = "area___ha__" AND "height__m_" = 15