risk	stay	age	surv
4.1	7.13	55.7	9
1.6	8.82	58.2	3.8
2.7	8.34	56.9	8.1
5.6	8.95	53.7	18.9
5.7	11.2	56.5	34.5
5.1	9.76	50.9	21.9
4.6	9.68	57.8	16.7
5.4	11.18	45.7	60.5
4.3	8.67	48.2	24.4
6.3	8.84	56.3	29.6
4.9	11.07	53.2	28.5
4.3	8.3	57.2	6.8
7.7	12.78	56.8	46
3.7	7.58	56.7	20.8
4.2	9	56.3	14.6
5.6	10.12	51.7	14.9
5.5	8.37	50.7	15.1
4.6	10.16	54.2	8.4
6.5	19.56	59.9	17.2
5.5	10.9	57.2	10.6
1.8	7.67	51.7	2.5
4.2	8.88	51.5	10.1
5.6	11.48	57.6	20.3
4.3	9.23	51.6	11.6
7.6	11.41	61.1	16.6
7.8	12.07	43.7	52.4
3.1	8.63	54	8.4
3.9	11.15	56.5	7.7