??????????????,2011???????????????????12%,?74??????,????????,???25???,?????35%?

????«????»??,?????????????????,2011?,??????????????????74???,????????0.74%???,???????????????????????????????????????????????????????????,????????????,??,??????????????74????

???,??????????????,??2010??,??????????,???????????1618?????,??????“??”,????????1.2???,??????6??????????????????????,????????????????????????91%?

?????????????,2011??????????????????2.5???,??,???????2.26???,????????1.8????????????,??????,??????????????,???????????????????(?????)