patient,old,new,difference
1,23.5,19.5,4
2,22.3,20.1,2.2
3,20.2,19.1,1.1
4,22.5,19.2,3.3
5,21.3,21.2,0.1
6,23.2,19.6,3.6
7,23.7,19.8,3.9
8,22.7,20.2,2.5
9,20.2,17.7,2.5
10,20.9,18.6,2.3
11,22.3,20.8,1.5
12,23.1,21.1,2
13,20.3,18.5,1.8
14,25.1,16.1,9
15,24.8,17.3,7.5
16,22,22.4,-0.4
17,21.3,21.5,-0.2
18,23.2,18.6,4.6
19,21.3,20.5,0.8
20,22,20.4,1.6