Zob,January,February,March
1,0,1,0.5
2,1.204119983,4,2
3,4.294091292,9,4.5
4,9.632959861,16,8
5,17.47425011,25,12.5
6,28.01344501,36,18
7,41.40980396,49,24.5
8,57.79775917,64,32
9,77.29364326,81,40.5
10,100,100,50
11,126.0085149,121,60.5
12,155.4020994,144,72
13,188.2564265,169,84.5
14,224.641095,196,98
15,264.6205333,225,112.5
16,308.2547156,256,128
17,355.5997383,289,144.5
18,406.7082917,324,162
19,461.6300499,361,180.5
20,520.4119983,400,200