CREATE TABLE table_23183 ("Institution" CLOB, "Location" CLOB, "Nickname" CLOB, "Founded" FLOAT, "Type" CLOB, "Enrollment" FLOAT, "Joined" FLOAT)

How many different enrollment numbers are there for the school whose students are nicknamed Barons?
SELECT COUNT("Enrollment") FROM table_23183 WHERE "Nickname" = 'Barons'
SELECT COUNT("Enrollment") FROM "table_23183" WHERE "Nickname" = 'Barons'