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??7????????????????????4??????? ??????????????3???????????,?????,?????????????2018?,??

?,???3???????????????????,?,????????6?22??????????,????????186??????,????2021???????????????11??????6???29???????????,?4000??,??23.8??????????????

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?,??????????7??5?????????????,6????????19?????????????????????,???????????27.2??????

??,???,???????????Challenger, Gray & Christmas Inc.?????????,????6??48786?????????????2020?????????,????2009????

??????????????????(High Frequency Economics)???????•???(Rubeela Farooqi)???????????????,“??,????????,????” ???????:??