World's central banks are officially dumping the dollar

For months, governments around the world have threatened to diversify their currency reserves away from the dollar.

Central banks increased their foreign currency holdings by $413 billion, or 6 percent, last quarter.

That was the biggest rise in at least six years, according to Bloomberg News.

And for the countries that reveal how they allocate that money, 63 percent of the fresh cash went into yen and euros during the second quarter, soaring from 37 percent 10 years ago, according to Barclays Capital.