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̹ ؾ 7,000 Ը ´ǰ ȯϸ, 깰 ī ҷ űݾ ȯ ִ.
ȯ ݾ 68,000 ̻ 2 51,000 ̻~68,000 ̸ 1 5õ 34,000 ̻ ~ 51,000 ̸ 1 17,000 ̻~34,000 ̸ 5õ ̴.
Һ ȣ ǰ( 70% ̻) Ե, ¶λǰ ǰ, 깰 ǰ, Ϲ ܵǸ, ǰ ã Ȯ ʿϴ.
, ¾ Һɸ ȸ һ ǰ Ǹ 1 31ϱ ´ǰ ƯǸŸ ǽѴ.
ǸűⰣ ī ǰǰ ǰ 5% 10% ȮǸ, 1δ ѵ 50 70 , ī 70 100 .
յΰ ̹ 簡 ȭ ڷγ Һȭ ϰ Ƴ Ⱑ DZ ٶ١, ù ϰ ã ֵ ȯ , ǰ, ϰڴ١ ߴ.