The bar chart compares the number of students at a UK university who finished their dissertation projects on time, submitted them late, failed to complete them, or had to rewrite them in 1990, 2000, and 2010.
It is clear that punctual completion became increasingly common over the period, whereas the figures for late submission, failure, and rewriting remained comparatively low.
In 1990, approximately 150 students finished their dissertations within the deadline. This figure rose markedly to about 230 in 2000 and reached around 300 by 2010, showing a steady improvement in timely completion rates. Late submissions fluctuated slightly, ranging between 30 and 50 students in all three years.
By contrast, the number of students who failed to write their dissertations was relatively small, at around 40 in 1990, before declining in subsequent years. Similarly, only a handful of students were required to rewrite their projects, with figures remaining below 30 across the entire period.
Overall, dissertation performance improved considerably over the two decades, as more students completed their work punctually while fewer encountered difficulties with submission or rewriting.