Context: The Falcons returned home to take on the Cowboys. The Cowboys drew first blood with their 23-yard field goal from Dan Bailey to take a 3-0 lead. With this field goal, the Falcons' trend then simmered to 4 out of their last 5 games trailing a team. The Cowboys then put up another Bailey field goal from 32 yards out to make the lead 6-0. The Falcons responded in the second quarter with field goals from Matt Bryant from 45 and 46 yards out to tie the game at halftime at 6-6. After a scoreless third quarter, the Falcons took the lead in the fourth quarter with Michael Turner running for a 3-yard touchdown. Then they increased their lead with Bryant's 36-yard field goal for a 16-6 lead. The Boys tried to rally as Tony Romo found Kevin Ogletree on a 21-yard touchdown pass to cut the lead to 16-13, but the Falcons increased their lead with Bryant's 32-yard field goal, making the Cowboys have to score a touchdown. They couldn't and the Falcons won 19-13. With the win, the Falcons improved to 8-0 for the first time in franchise history. Also they went 3-0 against the NFC East.

Question: How many points did Atlanta win by?

Answer:
6