Source: IHS Global Insight, Inc., World Trade Service. Does not include intra-EU trade.
Modal Shares of World Trade by Volume and Value, 2008
Long distance trade is supported by transportation modes in different capacities and capabilities, leading to a specialization in terms of volumes and values. In volume, maritime shipping is the main support of international trade, accounting for about 90% of all the tonnage carried, but for 73% of the value of trade. This underlines that most of the cargo carried by maritime transportation is of lower value (e.g. bulk minerals). Still, several maritime trades involves high value goods such as containers (e.g. retail goods). In terms of value, air transportation shows a much higher share than if measured by volume since it only account for 0.25% of the volume but 13% of the value of trade. Air transportation typically carries high value to volume cargoes such as electronic goods. What is carried overland (road and rail) is a mix of cargoes.