case	prewt	postwt	treatment
1	80.7	80.2	1
2	89.4	80.1	1
3	91.8	86.4	1
4	74.0	86.3	1
5	78.1	76.1	1
6	88.3	78.1	1
7	87.3	75.1	1
8	75.1	86.7	1
9	80.6	73.5	1
10	78.4	84.6	1
11	77.6	77.4	1
12	88.7	79.5	1
13	81.3	89.6	1
14	78.1	81.4	1
15	70.5	81.8	1
16	77.3	77.3	1
17	85.2	84.2	1
18	86.0	75.4	1
19	84.1	79.5	1
20	79.7	73.0	1
21	85.5	88.3	1
22	84.4	84.7	1
23	79.6	81.4	1
24	77.5	81.2	1
25	72.3	88.2	1
26	89.0	78.8	1
27	80.5	82.2	2
28	84.9	85.6	2
29	81.5	81.4	2
30	82.6	81.9	2
31	79.9	76.4	2
32	88.7	103.6	2
33	94.9	98.4	2
34	76.3	93.4	2
35	81.0	73.4	2
36	80.5	82.1	2
37	85.0	96.7	2
38	89.2	95.3	2
39	81.3	82.4	2
40	76.5	72.5	2
41	70.0	90.9	2
42	80.4	71.3	2
43	83.3	85.4	2
44	83.0	81.6	2
45	87.7	89.1	2
46	84.2	83.9	2
47	86.4	82.7	2
48	76.5	75.7	2
49	80.2	82.6	2
50	87.8	100.4	2
51	83.3	85.2	2
52	79.7	83.6	2
53	84.5	84.6	2
54	80.8	96.2	2
55	87.4	86.7	2
56	83.8	95.2	3
57	83.3	94.3	3
58	86.0	91.5	3
59	82.5	91.9	3
60	86.7	100.3	3
61	79.6	76.7	3
62	76.9	76.8	3
63	94.2	101.6	3
64	73.4	94.9	3
65	80.5	75.2	3
66	81.6	77.8	3
67	82.1	95.5	3
68	77.6	90.7	3
69	83.5	92.5	3
70	89.9	93.8	3
71	86.0	91.7	3
72	87.3	98.0	3