10 years
14 years
16 years
12 years
C. 16 years
18
15
25
20
45
42
40
44
8:7
6:3
3:6
9:5
10
8
4
None
12
13
14
15
10 years
14 years
16 years
12 years
13
10
18
15
38
40
41
30
22 years
20 years
21 years
24 years
36
40
41
48
24
18
16
12
15
14
20
22
30
25
20
15
35 years
47 years
40 years
45 years
40
35
25
30
15 years
12 years
19 years
17 years
5
10
15
20
11:54
11:51
11:50
11:53
39
37
41
35