Roosevelt High School มีตัวเลขการลงทะเบียนจำนวนเท่าใด ไม่จำเป็นที่จะต้องใช้ตารางทั้งหมด
How many enrollment figures are provided for Roosevelt High School?It is not neccessary to use all the tables.
 table_18972:  "Location" [ text]  "Founded" [ real]  "Affiliation" [ text]  "Enrollment" [ real]  "Nickname" [ text]  "Division" [ text] 
SELECT COUNT("Enrollment") FROM table_18972 WHERE "High School" = 'Roosevelt'