50 v , , v v v v .
1. . , v v v v . 1997 v v, v v v 16521,000 v v, v 18 , 1980 73.6%-, 1990 28.2%- .
vv v 12482,000 v v, v 14 , 1980 65.9%- , 1990 16.7%- , v vv 8.9%- .
v 4039,000 v v, v 100%- 㺺 1980 102.7%- , 1990 37.1%- , v vv 6.7%- . 1997 , v 90704, 50618,000 v v, v 5.4 , 1980 21.2%-, 1990 11.3%- . 11486, vv 7217,000 v v, 1980 23.8%-, 1990 23.5%- . 1996 , v v 30 9 v .
2. v v . Y v , . vv . vv , v, v v . Yv v vv v vv 뺺, v , v 㺺 , 뺺 vvv .
3. v . vvvvv v v . v v v, 1997 v v 247,000 v v, v 92 㺺 1980 220%-, 1990 35%- , v 9.6%- vvv .
Y 528,000 v v, v 9.8 , 1980 60%-, 1990 14%- , v 9.1%- . Y 447,000 v v, 1980 34.6%-, 1990 16.7%- . 886,000 v v, 1980 21.3%-, 1990 0.44%- .
4. v v . Y v v v v v v v .
Y v v vv v 㺺 v v v . Y v v v vvvv 㺺 .
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