CREATE TABLE table_19163 ("School Name" TEXT, "City" TEXT, "Students" FLOAT, "FTE Teachers" TEXT, "Pupil/Teacher Ratio" TEXT, "School Level" TEXT, "Low Grade" TEXT, "High Grade" TEXT)

How many FTE teachers are there when the student:teacher ration is 19?
SELECT "FTE Teachers" FROM table_19163 WHERE "Pupil/Teacher Ratio" = '19'
SELECT "FTE Teachers" FROM "table_19163" WHERE "Pupil/Teacher Ratio" = '19'