years_of_service,gratuity_in_months_of_basic,avg_days_per_year
1,0.70,21.0
2,1.40,21.0
3,2.10,21.0
4,2.80,21.0
5,3.50,21.0
6,4.50,22.5
7,5.50,23.6
8,6.50,24.4
9,7.50,25.0
10,8.50,25.5
11,9.50,25.9
12,10.50,26.3
13,11.50,26.5
14,12.50,26.8
15,13.50,27.0
16,14.50,27.2
17,15.50,27.4
18,16.50,27.5
19,17.50,27.6
20,18.50,27.8
21,19.50,27.9
22,20.50,28.0
23,21.50,28.0
24,22.50,28.1
25,23.50,28.2
26,24.00,27.7
27,24.00,26.7
28,24.00,25.7
29,24.00,24.8
30,24.00,24.0