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

2??????500??

3?????????

4???????????

5?????????????

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