"Ǹ ƶ"
ͻ꺸Ǽ, 20Ϻ10 ҾƾDZ
ͻ ǼҰ 20Ϻ 10 ſ 2ȸ ҾƾDZ Ѵ.
̶ Ҹ ŭ ȯ, , ū Ǻο ̰ ġ ȯ.
ÿ 1981~1990 5%1995~1996 2Ⱓ 8.6% , ɴ 21~30 26.3%, ~10 19.6% ϰ ִ.
ͻúǼҴ 湮 ȣڿ ȭڸ 縦 ǽ 20 Ƹ ҾƾDZ ڷ ߴ.
̵ ſ °, ° (10~12) α , ѹġ, , ưǰü, Ȱΰ, ѹ ü ̴.
ǰ ְ α ģ ڵ鿡 ǽ ڵ ü ȹ̸, 1 Ŀ ȹ̶ .
ͻúǼҴ ȭ, ϸ 12 ̸ 450 ɺ ߴ ˻縦 ǽϴ ߴ ũ ġ ִ.