1

1

2

1

3

1

4

4

5

3

1993.8

6

2

7

1

8

2

1987.2

9

1

1982.12

10

1

11

1

12

3

13

2

14

1

15

2

16

1

17

1

18

3

1995.8

19

1

20

1