21
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21
21
21
21
21
21
21
21
21
21
20
19
21
21
21
21
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21
21
21
21
21
21
21
16
21
21
21
21
21
21
21
21
21
15
21
20
21
15
21
21
21
21
18
21
21
21
16
21
21
16
9
21
21
21
13
14
15
17
21
15
20
8
15
11
10
13
15
8
16
12
14
11
9
21
9
16
14
21
15
10
18
12
21
9
15
17
10
18
19
16
21
17
14
20
18