4

0

0

2

0

0

8

0

0

4

0

1

2

1

2

6

0

0

15

0

0

1

1

1

4

0

3

4

1

1

5

0

0

5

2

3

13

0

0

2

0

0

1

0

0

7

0

1

7

1

2

3

0

0

4

0

2

8

1

2