CREATE TABLE table_19998428_3 (san_javier_municipality___percentage_ NUMBER, language VARCHAR2)

For language Aymara Simi, what was the maximum San Javier municipality percentage?
SELECT MAX(san_javier_municipality___percentage_) FROM table_19998428_3 WHERE language = "Aymara simi"
SELECT MAX("san_javier_municipality___percentage_") FROM "table_19998428_3" WHERE "Aymara simi" = "language"