year,month,sales
2020,1,9000000.0
2020,2,10000000.0
2020,3,10000000.0
2020,4,9000000.0
2020,5,9000000.0
2020,6,10000000.0
2020,7,9000000.0
2020,8,8000000.0
2020,9,9000000.0
2020,10,9000000.0
2020,11,9000000.0
2020,12,8000000.0
2021,1,10000000.0
2021,2,9000000.0
2021,3,9000000.0
2021,4,11000000.0
2021,5,11000000.0
2021,6,10000000.0
2021,7,11000000.0
2021,8,11000000.0
2021,9,11000000.0
2021,10,8000000.0
2021,11,10000000.0
2021,12,9000000.0