CREATE TABLE table_30426 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Affiliation" TEXT, "Enrollment" FLOAT, "Team Nickname" TEXT, "Primary conference" TEXT)

What is the total enrollment for private/ disciples of christ?
SELECT "Enrollment" FROM table_30426 WHERE "Affiliation" = 'Private/ Disciples of Christ'
SELECT "Enrollment" FROM "table_30426" WHERE "Affiliation" = 'Private/ Disciples of Christ'