A significant proportion of global freight originates from the world's leading economies.
In 2008, the world's top five economies by Gross Domestic Product GDP-the United States, Japan, China, Germany, and France-together accounted for:
- 35 percent of global goods exports ($5.6 trillion out of $16 trillion),
- 50 percent of global GDP ($30.1 trillion out of $60.9 trillion), and
- 28 percent of world population (1.9 billion out of 6.8 billion people).5
5 China accounted for more than 1.3 billion people.