origin	destination	population
0	1	200.0
0	2	200.0
0	3	200.0
0	5	100.0
0	7	100.0
0	8	100.0
0	10	100.0
0	12	100.0
0	13	1000.0
1	0	500.0
1	2	0.0
1	3	50.0
1	5	50.0
1	7	50.0
1	8	50.0
1	10	50.0
1	12	50.0
1	13	500.0
2	0	500.0
2	1	0.0
2	3	50.0
2	5	50.0
2	7	50.0
2	8	50.0
2	10	50.0
2	12	50.0
2	13	500.0
3	0	200.0
3	1	50.0
3	2	50.0
3	5	50.0
3	7	50.0
3	8	50.0
3	10	50.0
3	12	50.0
3	13	200.0
5	0	200.0
5	1	50.0
5	2	50.0
5	3	50.0
5	7	50.0
5	8	50.0
5	10	50.0
5	12	50.0
5	13	200.0
7	0	200.0
7	1	50.0
7	2	50.0
7	3	50.0
7	5	50.0
7	8	50.0
7	10	50.0
7	12	50.0
7	13	200.0
8	0	200.0
8	1	50.0
8	2	50.0
8	3	50.0
8	5	50.0
8	7	50.0
8	10	50.0
8	12	50.0
8	13	200.0
10	0	200.0
10	1	50.0
10	2	50.0
10	3	50.0
10	5	50.0
10	7	50.0
10	8	50.0
10	12	50.0
10	13	200.0
12	0	200.0
12	1	50.0
12	2	50.0
12	3	50.0
12	5	50.0
12	7	50.0
12	8	50.0
12	10	50.0
12	13	200.0
13	0	1000.0
13	1	200.0
13	2	200.0
13	3	100.0
13	5	100.0
13	7	100.0
13	8	100.0
13	10	100.0
13	12	100.0