???????
??????1992??????????????????gsm?????pc??????????1999?????????????????????????????????gsm?????2001?????????????2500?????2002???3600???
???? ??2000??????????????????????????2000??????????????????????????2000???????????????4000???
???? ???2001?????????????????????2001?????????189?????20?????????159?????????59%???40????????????????????84.13%?15.87%???1??
???? ??2002?????????????300????????????????????100??????????3???????????2002??????????30?????????????????????????
???? ???????????????????80????????2005??????1600????????????????????????????????150????????0?1??????????????15?????????????????????????????????????????????????????????????? ????