CREATE TABLE table_37987 ("School" TEXT, "Team Name" TEXT, "Town" TEXT, "County" TEXT, "School Enrollment  ( 2008\\u201310 ) " FLOAT, "Football?" TEXT)

What is the highest number of school enrollment for Union Star High School in De Kalb county?
SELECT MAX("School Enrollment (2008\u201310)") FROM table_37987 WHERE "County" = 'de kalb' AND "School" = 'union star high school'
SELECT MAX("School Enrollment (2008\u201310)") FROM "table_37987" WHERE "County" = 'de kalb' AND "School" = 'union star high school'