???2000??

·?

??412? ???????????o??з???????Ч???410??о?

??????????г??????м???Ч??????д????????????????????塢???????????

ν???????????????o??????????????????ò???з???????Ч?μ?????????2200???8%?????

о?嫽?????о?о??????????????????????????????з???Ч??2000???????????з?????????з??????о?