Apple is an American company. Increasingly, however, the California-based company is relying on sales in China, Japan, and the Asia Pacific region to boost revenue, according to a new Fortune survey.

Over the past four years, Apple has seen revenue drop in Europe and the Americas, both as a percentage of total revenue, and in dollar terms. In China/Asia Pacific and Japan, Apple has seen the opposite occur.

Between 2010 and Apple’s first fiscal quarter of 2013, the Americas’ share of the company’s total revenue has dropped 22 percent. Europe’s share is off 39 percent. Over the same time period, China’s share of the company’s total revenue has increased 62 percent. Japan’s share has risen 49 percent.

Apple’s combined Asian sales during the Q1 2014 were $17.4 billion. This compared to $13 billion in Europe, and $20 billion in the Americas.

On Monday, Apple announced record quarterly sales for the iPhone and iPad, an unexpected uptick in Mac sales, and a profit of $13.1 billion on revenue of $57.6 billion.

For more information, see: Apple CEO Tim Cook Talks China Mobile Deal In A Rare Television InterviewMaking It Official: China Mobile To Begin Selling The iPhone 5C, and The Blame Game Has Begun After Weaker Than Expected iPhone Sales.