a,2019-01,3000,5000,2000
a,2019-02,6000,4000,3000
a,2019-03,3000,4000,2000
a,2019-04,3500,5500,4000
a,2019-05,3800,5200,6000
a,2019-06,3900,3000,4000
a,2019-07,2000,2500,2800
a,2019-08,1000,4000,2600
b,2019-01,3000,5000,2000
b,2019-02,6000,4000,3000
b,2019-03,3000,4000,2000
b,2019-04,3500,5500,4000
b,2019-05,3800,5200,6000
b,2019-06,3600,3000,4000
b,2019-07,2000,2500,2800
b,2019-08,1000,4000,2600
c,2019-01,3000,5000,2000
c,2019-02,1000,4000,3000
c,2019-03,3000,4000,2000
c,2019-04,3500,5500,4000
c,2019-05,3800,5200,6000
c,2019-06,3900,3000,4000
c,2019-07,2000,2500,2800
c,2019-08,1000,4000,2600