?? ??????:??????????????????????500???
????:1?????qt:??????????
2????????
3????????
4??????
5?????
???,??9 ??????? 20 ???,???500?????,?????76%?
??,?????????????????????????????????????9???,??2.5???????????????,12????????????10????????????,???????????????????,???
??5.6????,????2012??????????????,???????????????????????????????????????,?????
(??? ??? ??????????????????????????????? ?? ??? ??????? ???????????????? ???????????? ? ????????? ????????? ???????? ???? ?) ???????:?????????????????