??
??????????,??????????(?????????)?,????????????????,1????20?????????????????0?-2??????????8?????????24?????????,??????????????????2009.2??????2541.4?????????????
???????????
1?????15?,?«??????????????????????(?????????????)??»,????,?????,??????,??????????????????????,?????????,???????????1????????20??????????????????????28?,?????
??
?,??????????????????????6000???????????,????????626.84?????????,???????205.8????,?,?????????????,?????????????74%????????65%,??30%??34%?
????,2000???????2000-4000????4000-6000???????????10%?52%?108%?
???
??,??????,???,????????????????????????????????????????????????,??????,?,??????????????????????????????????????????????????????????????,?????????,???????????????????,???????????????,???
(??????????? ??? ??????????) ????????????:??????
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??????2000????????????????????????????????