1

1

1992.12

2

3

2005.5

3

2

1994.9

4

2

1996.6

5

1

1981.4

6

4

7

2

1985.6

8

2

2005.8

9

1

10

1

11

2

12

1

13

1

14

2

1997.8

15

1

1997.8

16

3

1981.12

17

1

1988.10

18

3

1989.7

19

2

1989.11

20

1

1990.12