The three pie charts illustrated how one bookseller sold five types of books in 1972, 1992 and 2012. Every units at diagrams depicted in persanteges.
Overall, adult fiction and children’s fiction recieved highest share at 2012 regadless the fact that they indicated equally data from 1972 with steady increased in 1992. However while the proportion two groups of literature was growing over the time, the figures of travelб biografy and others rapidly plammet.
In 1972, the highest values of selling went to others at 25%, followed by adult fictionб children fiction and biography with the same meaning at 20% every units whereas the last one travel contaned 15%.
By 1992, adult, children fiction, and travel rose to 25%, 22% and 18% respectively where adult fiction maintainig dominatence position. Selling other books and biography declined significantly on 5%.
In 2012, pie chart was represented by adult fiction with soar persentage to 45% although children finction maitained gradually rose to 25%. On the other hand, others, travel, and biography regressed considerably to 12%, 10%, and 8% accordingly.