Txij li thaum lub Tsib Hlis, Tuam Tshoj mus rau North America shipping dheev tshwm sim "lub cabin nyuaj nrhiav", cov nqi thauj khoom tau nce siab, ntau cov lag luam me thiab nruab nrab ntawm txawv teb chaws tau ntsib teeb meem kev xa khoom, kev xa khoom ntawm cov teeb meem kim.Tej zaum 13, Shanghai export thawv sib haum xeeb freight Performance index (US West Route) mus txog 2,508 ntsiab lus, 37% siab tshaj lub Tsib Hlis 6, nce 38.5% los ntawm lub Plaub Hlis kawg.Qhov Performance index yog muab los ntawm Shanghai Shipping Exchange, feem ntau nthuav qhia Shanghai rau US West Coast ports ntawm hiav txwv freight nqi.Lub Tsib Hlis 10 tso tawm ntawm Shanghai Export Container Freight Index (SCFI) tau nce 18.82% los ntawm lub Plaub Hlis kawg, ntaus lub siab tshiab txij li lub Cuaj Hlis 2022, Shanghai Export Container Freight Index (SCFI).Ntawm lawv, US West txoj kev tau nce mus rau 4,393 US las / 40-foot thawv, US East txoj kev tau nce mus rau 5,562 US las / 40-foot thawv, raws li, tau nce 22% thiab 19.3% txij thaum lub Plaub Hlis kawg, tau nce mus rau lub 2021 Suez Canal tom qab congestion ntawm theem.