Hillary and Bill Clinton earned over $25 million for delivering more than 100 speeches since 2014, according to financial disclosure forms released by the Clinton campaign, ABC News reported.

Hillary Clinton, the front-runner for the Democratic presidential nomination in 2016, also earned $5 million in royalties for her book, "Hard Choices," which was released in June, according to the forms.

The Clintons' income puts them at least in the top 0.1 percent of the US population.