2012 ְȯ氳 ȵ( ǿ) 297õ500鸸 鿩 ð ؼ ĵ ְŹȭ ù ġ Ȱȭ ϰ ְȯ氳 Ѵ. ÿ (ûֹ) ð 74 1̻ ġ 80 154 ְȯ ̰Ǽ ϰ Ⱓ ġ μ ϰ ̹ ȹ̴. ̸ 3 ڸ ȮϿ ϸ ð ְ 150 3%, 5 ġ 15 һȯϴ 4õ ̳ ڵǸ, 100Ϸ .ϼ ǰ 50~200 öϴ ̰ ħ̴. Ư ô غ ð ڿ δ ְ ȵȸ ༭ üϿ 20% ְ Ͽ ij ħ̴.