21
21
21
21
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20
21
20
21
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21
21
21
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21
20
21
21
21
19
21
21
21
21
18
21
19
21
20
21
19
20
21
21
21
21
21
21
21
21
21
20
21
16
15
15
15
21
21
21
21
21
21
15
21
21
21
19
21
21
21
21
16
15
21
16
18
18
8
9
15
14
11
19
11
14
21
18
12
15
17
18
20
17
9
19
19
21
20
21
21
20
16
21
21
21
21
20