DC Metro use

In the graph  describe the movement of people in DC area. First, the number of people rise dramatic  from 6 am  until 8 am where It get its tip. At 8:am the number of people using the metro start to decline until 10. It reamins modetare until 2 pm where it rapid decline until 4. It star to increase dramatic from 4 to 6 and decrease from 6 to 8. I stay moderate from 8 to 10