





1997
1126
808
804
40%
1668
0%
12
33%
14
50%
137
28%
2
50%
8
50%
157
45%
363
42%
5430
51%
1006
52%
193917
29%
56
48%
176
38%
21
14%
16250
31%
31
52%
6
50%
17436
47%
29
31%
22730
34%
421
11%
256
38%