In just five years, China has surpassed the United States as a trading partner for much of the world, including U.S. allies such as South Korea and Australia, according to an Associated Press analysis of trade data. As recently as 2006, the U.S. was the larger trading partner for 127 countries, versus just 70 for China. By last year the two had clearly traded places: 124 countries for China, 76 for the U.S.

In the most abrupt global shift of its kind since World War II, the trend is changing the way people live and do business from Africa to Arizona, as farmers plant more soybeans to sell to China and students sign up to learn Mandarin.

The findings show how fast China has ascended to challenge America's century-old status as the globe's dominant trader, a change that is gradually translating into political influence. They highlight how pervasive China's impact has been, spreading from neighboring Asia to Africa and now emerging in Latin America, the traditional U.S. backyard.

The United States is still the world's biggest importer, but China is gaining. It was a bigger market than the United States for 77 countries in 2011, up from 20 in 2000, according to the AP analysis.

The story that emerges is of China's breakneck rise, rather than of a U.S. decline. In 2002, trade with China was 3 percent of a country's GDP on average, compared with 8.7 percent with the U.S. But China caught up, and surged ahead in 2008. Last year, trade with China averaged 12.4 percent of GDP for other countries, higher than that with America at any time in the last 30 years.