CREATE TABLE table_16187 ("Institution" TEXT, "Location" TEXT, "Mens Nickname" TEXT, "Womens Nickname" TEXT, "Founded" FLOAT, "Type" TEXT, "Enrollment" FLOAT, "Joined" TEXT)

What is the year the institution Tougaloo College joined?
SELECT "Joined" FROM table_16187 WHERE "Institution" = 'Tougaloo College'
SELECT "Joined" FROM "table_16187" WHERE "Institution" = 'Tougaloo College'