CREATE TABLE table_203_610 (id NUMBER, "institution" CLOB, "location" CLOB, "nickname" CLOB, "founded" NUMBER, "historical affiliation" CLOB, "enrollment" NUMBER, "primary conference" CLOB)

how many institutions have a private historical affiliation ?
SELECT COUNT("institution") FROM table_203_610 WHERE "historical affiliation" = 'private'
SELECT COUNT("institution") FROM "table_203_610" WHERE "historical affiliation" = 'private'