In 20 14 years, how many times did the number of books in public libraries increase relative to the total number of books?
Title: At the end of 20 14, the actual construction area of national public libraries12365438+6000m2, an increase of 6.3% over the end of last year; The total collection of books was 790.92 million volumes, an increase of 5.6% over the end of last year; 506.74 million e-books, an increase of 34.2% over the end of last year; The number of seats in the reading room was 855,500, an increase of 5.7% over the end of last year. That is, in 20 14 years, the number of e-books in public libraries is 3.08 times of the total number of books.