Features of pie chart

• Category (most/least, change)
• Quantifiers
• Approximations: approximately, about, just under/above, roughly, around, just over, …
• Fractions: one third (1/3), two thirds (2/3), a half (1/2), a quarter (1/4), three quarters (3/4) ,…
• Verbs: occupy, consist of, account for, make up, take up, contribute, comprise, …
• Time expressions: in, since, for, during, from, to, in the early … of the …, in the late …, just after turn of the…, in the 1850s, in the mid …, close to the millennium,…
• Comparisons


Sample:


The three pie graphs illustrate how many reading hours are spent by educated people in the library at a British university. It is clear that the students who are researching for a Ph.D. spent more time than either all students in high schools or universities.

For instance, the vast majority of those studying doctorates spent most of their hours in the library in comparison with the other students in schools and universities. Particularly, the figures were 51 percent, 15 percent, and 9 percent, respectively. Furthermore, British education witnessed a significant number of undergraduate students spent more time online and less time with traditional media in the library. It is evident that just over two out of three of undergraduates spent only at most 7 hours for using the library, whereas the average for all students in this category consists of one half. Meanwhile, there is a tiny minority of postgraduates related to less using the library. For the average time of using the library resources from 8 to 14 hours, a similar trend is shown in the figures. In particular, all of the academic students are accounted for approximately one-third of the total survey students.