age chd
20   0
26   0
30   0
33   0
34   0
37   0
39   1
42   0
44   0
46   0
48   1
50   0
54   1
56   1
57   1
60   0
64   0
23   0
28   0
30   0
33   0
35   0
37   1
40   0
42   0
44   0
46   1
48   1
50   1
55   0
57   0
57   1
60   0
64   1
24   0
28   0
30   0
34   0
35   0
37   0
40   1
41   1
44   1
47   0
49   0
52   0
55   1
57   0
58   1
61   1
65   1
25   0
29   0
31   1
34   0
36   1
38   0
41   0
43   0
44   1
47   0
49   0
52   1
55   1
57   1
58   1
62   1
69   1
25   1
30   0
32   0
34   1
36   0
38   0
41   0
43   0
45   0
47   1
49   1
53   1
56   1
57   1
59   1
62   1
26   0
30   0
32   0
34   0
36   0
39   0
42   0
43   1
45   1
48   0
50   0
53   1
56   1
57   1
59   1
63   1