Origin	Destination	Population
point 17	point 30	16.0
point 17	point 35	12.0
point 17	point 28	24.0
point 20	point 1	76.0
point 20	point 2	108.0
point 20	point 3	80.0
point 20	point 9	92.0
point 20	point 11	96.0
point 20	point 15	44.0
point 20	point 16	56.0
point 20	point 17	44.0
point 20	point 21	4.0
point 20	point 22	40.0
point 20	point 23	36.0
point 20	point 25	16.0
point 20	point 29	32.0
point 20	point 30	32.0
point 20	point 35	8.0
point 20	point 28	20.0
point 21	point 1	44.0
point 21	point 2	140.0
point 21	point 3	132.0
point 21	point 9	84.0
point 21	point 11	88.0
point 21	point 15	40.0