CREATE TABLE table_203_591 (id NUMBER, "high school" CLOB, "join\ year" CLOB, "from" CLOB, "left" CLOB, "league left to" CLOB)

how many high schools had a league leave to big nine conference ?
SELECT COUNT("high school") FROM table_203_591 WHERE "league left to" = 'big nine conference'
SELECT COUNT("high school") FROM "table_203_591" WHERE "league left to" = 'big nine conference'