Not only is Hillary Clinton’s new book Hard Choices falling short in sales, but those who actually bought it are apparently losing interest pretty early on in the book. According to a metric used to gauge how deep readers are getting in to books on Amazon Kindles, Clinton’s account of her time as secretary of state is failing to capture people’s attention.

The “Hawking Index,” which essentially measures the average page number of the five most-highlighted passages on Kindles divided by the total length of the book, finds that people are only making it about 33 pages, or 2.04 percent, in to Hard Choices before putting it down. According to the Washington Post, three of the five most-highlighted sections are within the first ten pages.

Compared to other potential 2016 hopefuls, Clinton is trailing: She’s nipping at Vice President Joe Biden’s heels — readers made it just under 3 percent in to his 2008 Promises to Keep — while fans of Elizabeth Warren are getting about 15 percent in to A Fighting Chance, released earlier this year. Nonetheless, Clinton can take solace in knowing that readers made it about 18 percent into her 2004 autobiography, Living History.

Hard Choices isn’t the only book that hit the shelves with much fanfare by the Left, only to apparently garner little actual readership once people sat down with it: Readers apparently only made it about 2.4 percent, or 26 pages, in to Thomas Piketty’s widely praised Capital in the Twenty-First Century.