"id" "age" "death" "gender"
 1 50 1 "1"
 1 63 0 "2"
 2 49 0 "1"
 2 52 1 "2"
 3 56 0 "1"
 3 70 0 "2"
 4 68 1 "1"
 4 75 1 "2"
 5 74 0 "1"
 5 72 1 "2"
 6 69 0 "1"
 6 69 0 "2"
 7 70 0 "1"
 7 70 0 "2"
 8 67 1 "1"
 8 70 0 "2"
 9 74 0 "1"
 9 74 0 "2"
10 81 0 "1"
10 81 0 "2"
11 61 1 "1"
11 58 1 "2"
12 75 0 "1"
12 73 0 "2"
