CREATE TABLE table_77448 ("Game" TEXT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Dolphins' points" TEXT, "Opponents' Points" TEXT, "Record" TEXT, "Streak" TEXT, "Attendance" TEXT)

What is the streak for game 16 when the Dolphins had 21 points?
SELECT "Streak" FROM table_77448 WHERE "Dolphins' points" = '21' AND "Game" = '16'
SELECT "Streak" FROM "table_77448" WHERE "Dolphins' points" = '21' AND "Game" = '16'