??????????2??5??? (??? ???)????2????5?,????4???,???????2311?????????????

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??????????????,?1995.6?????????????????,??????????5.2%???351.8??,?????185.8???????,????????????1????????????2??????????49.4????

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????APP????,???????????,20??30???????????26%,????????????????????,????????????????????,??????????????????????,?????????????????????????????????27.7????

??,????????????????,????19.5??,???????????25.7??????,??????28.2%,??????????8%??????????????????????11.8?,??,????????IP????????????“????”?????????????????????,?????????????????????????????????????,?????????????????????

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????????????????????????????,???14????????19???,22????????????????,????????????????????????,????“???”,?????????????????(???????????)

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