2011?11???????????551, clinic 900??
????????13.1%?????????
???????????????????
????????????????11?????
??????????????
??????????????
????????????????
?????????
11?????92,300?????????35%
????11????????(??????)
????????????
???9??????????????????????????
???????????????????(11??134,000????????32.1%)
?????????????????????
??????11???????33,700???????22.8%
?????????????????????
???????2008?11??35,787????
?????????????????????
????????????(DELTA)?????(ANA????)????
??????11?????????????522,900??
????????28.3%
????