????:1???????:???????

2???????

3??????????????

4???????

5?????vx??????

??12??22?? (?????????? ???)22?????,?????,????????????????????????80?????????????,??1997??????

??,?????19?????????90?????,1?11??????????73.9?,?35%,???????????????2019?59%?

??,????????,???????????????12?????????20?????????????????,??????????45.6?,???57.2%,?22%?

??12?????????????????17?????????,??9300??,??????30%????,?250??????????????11??????????????????????????,?8.3??,????????196%?

??,??????????7?????,?????????????????????????(?) ???:??