�???????�

????:???????:???????

????????12??????????????13?????? ???????:????? ?????????????�?????�?�?????�

??? ?????? ???? ???

�?????,??????????�?????5?,???,?????????�????????????????�,?????

??????????5?????????????????,??????????????????????????????? ?????????? ??

�???????????????,????�

??1971?????,????,?????????????????????

??????????20???90???????,???????????

????,??55%?????,�????????????�?�?????????,????????????????????????,?????,?????�

??????????12????????,?????450???????????????14.5?????(??????????,???????????)???????????????,???????????????????????,?????????????????????�??????????�????????????????

??????????????????,????,??,????????????????????????????,??????????,?,?????;??????????????,??,????,???????????????,???

�?????????????,???????????,?????????????????????????�??????????,?????????????,?????????????,??????�?????????????????????,??????????????�

�???,???�

�???????,??????�???,?????,???????????

????????????,????????????????15.55?????????????????,???????????????487????????????????????????????????

???,?????????????,????????487?????(???????????????????????????)

?50???�?????????????�??,???

????????????,??????????????AI??????????????????9???????,??�?????????????????? ???�???,??????�??????????????????????��??��??��AI????�?????????????????,??????,??????????????????