Ma kāna Review of Maritime Transport for 2021, United Nations Conference on Trade and Development (UNCTAD) i ʻōlelo ʻo ka piʻi ʻana o nā kumukūʻai pahu pahu, inā e hoʻomau ʻia, hiki ke hoʻonui i nā kiʻekiʻe kumukūʻai o ka honua ma 11% a me nā kumukūʻai kūʻai aku ma 1.5% ma waena o kēia manawa. a me 2023.

E ʻoi aku ka nui o ka hopena o nā uku ukana kiʻekiʻe ma nā mokuʻāina kūkulu moku liʻiliʻi (SIDS), hiki ke ʻike i ka piʻi ʻana o nā kumukūʻai lawe mai ma 24% a me nā kumukūʻai mea kūʻai aku ma 7.5%.Ma nā ʻāina liʻiliʻi liʻiliʻi (LDC), hiki ke piʻi ke kumukūʻai o nā mea kūʻai aku ma 2.2%.

I ka hopena o 2020, ua piʻi nā kumukūʻai ukana i nā pae i manaʻo ʻole ʻia.Ua hōʻike ʻia kēia ma ka Shanghai Containerized Freight Index (SCFI).

No ka laʻana, ʻoi aku ka liʻiliʻi o ka helu wahi SCFI ma ke ala Shanghai-Europe ma mua o $ 1,000 no TEU i Iune 2020, ua lele i kahi $ 4,000 no TEU ma ka hopena o 2020, a piʻi i $ 7,552 no TEU ma ka hopena o Nowemapa 2021. 

Eia kekahi, manaʻo ʻia e mau ka nui o ka ukana ma muli o ke koi ikaika i hui pū ʻia me ka maopopo ʻole o ka lako a me nā hopohopo e pili ana i ka pono o ka lawe ʻana a me nā awa.

Wahi a ka hōʻike hou loa mai Sea-Intelligence, kahi ʻikepili moana a me ka hui ʻōlelo aʻoaʻo ma Copenhagen, ʻoi aku ka lōʻihi o ka lawe ʻana i ka moana ma mua o ʻelua makahiki e hoʻi i nā pae maʻamau.

E hoʻopili pū ʻia nā kumukūʻai kiʻekiʻe i nā mea haʻahaʻa haʻahaʻa e like me nā lako, textiles, lole a me nā huahana ʻili, nona ka hana i hoʻokaʻawale pinepine ʻia ma nā ʻoihana haʻahaʻa haʻahaʻa mamao loa mai nā mākeke kūʻai nui.Ua wānana ka UNCTAD i ka piʻi ʻana o ke kumukūʻai kūʻai o 10.2% ma kēia mau mea.

ʻO ka Review of Maritime Transport he hōʻike hae UNCTAD, i paʻi ʻia i kēlā me kēia makahiki mai ka makahiki 1968. Hāʻawi ia i kahi kānana o nā hoʻololi a me nā hoʻololi ʻana e pili ana i ke kālepa moana, nā awa a me nā moku, a me ka hōʻiliʻili nui o nā ʻikepili mai ke kālepa moana a me ka halihali.