_id	ano	mes	total
1	2018	1	6091
2	2018	2	8384
3	2018	3	5558
4	2018	4	4919
5	2018	5	7643
6	2018	6	6457
7	2018	7	9554
8	2018	8	6765
9	2018	9	6925
10	2018	10	9012
11	2018	11	8299
12	2018	12	8729