times	treatment	censoring
4	1	1
6	1	1
8	1	1
8	1	1
9	1	1
10	1	1
12	1	11
7	2	1
12	2	1
15	2	1
16	2	1
18	2	1
22	2	0
19	placebo	1
24	placebo	1
18	placebo	0
20	placebo	0
22	placebo	0
27	placebo	0
30	placebo	0