????????????????????
??????
?????????????????????????????????????????????618-907??????????????????????????????????????????????3,700?????????????????????25-189???????????????????????????????????
??????????????????
1????????
?????51%-67%?
?????38%-50%?
?????38%???
2?????????
?????10%???
??????5%-10%?
??????0.5%-5%?
?????0.5%???
3??????????
????
????
????
4????????
???
???
???
???
???
????
