CREATE TABLE table_15664 ("Name" TEXT, "Years" TEXT, "Gender" TEXT, "Area" TEXT, "Authority" TEXT, "Decile" FLOAT)

Tkkm o te ara rima has a decile less than 4 in what years?
SELECT "Years" FROM table_15664 WHERE "Decile" < '4' AND "Name" = 'tkkm o te ara rima'
SELECT "Years" FROM "table_15664" WHERE "Decile" < '4' AND "Name" = 'tkkm o te ara rima'