The bar graph illustrates sales four different types of reading materials from 2002 to 2012.
The lowest sales figure was hobbies books which was never exceeded 1000 copies. In 2002, the number of hobbies books sold was nearly 200 copies. After that, this was increased by approximately 100 copies in 2004. But after 2 years it was at its lowest, having dropped from 300 to 75 in 2006. Following that, in 2008, this grew slowly from 75 to 100. Between 2008 and 2010, the number of hobbies books increased from 100 to 130. In the last year, this was gradually decreased from 130 to 80. The number of entertainment books was over than 1000 copies, nearly 1400 in 2002. Between 2002 and 2004, fun books increased moderately 1400 to 1850. After that, in 2006 entertainment books increased significantly 1850 to 2350. Between 2008 and 2010, the number of entertainment books were same, staying at 2500. In 2012, this was increased gradually 2500 to 2750. The number of art books started 1800 copies in 2002. İn 10 years this was increased steadily between 2000;2300;2400;2700 and 3000 copies. After that, The peak number of sales copies was history books. History books peak was in 2008 this was 10000 copies. İn 2006,2010 and 2012 the number of history books over than 8000 copies, but in 2002 and 2004 this was just over than 4000 copies.
All in all, the peak number of copies was for history books, at 10000 copies. The lowest was for hobbies books, which never exceeded 1000. Entertainment books and art books were average in the graph.