????:1???51??????:????????????

2??????????

3??????????

4??????

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

?????????????????:??????,5?????????1724?????,???????18.6?????????,?14%????????????13%,?????????????????,????,??,????????????

?????????,????,????,???????????????????????????????,5??13??,????????????????

?,????????????,????????,????????????,????????,????????????????????11%?26%?11%?

?,???

????:“????,????????????????????????????????,????????????????,?????????????????????????????????????????5%?” ?????????????:??