The pie charts given compare 4 different students based on the proportion of different course types chosen between 1984 and 2004, in 10-year intervals.
Looking at the illustration, it is immediately evident that face to face courses recorded the highest figure in most years, whereas the opposite was true for online courses. Additionally, most courses showed surveyed an upward trend, except for online courses.
In 1984, the proportion of face to face courses dominated the chart at 67%, which was roughly 47% higher than correspondence courses, and was double the figure correspondence courses. The proportion of mixed-media course ranked third at 13%. The proportion of correspondence was double the figure mixed- media. By 1994, online course started arriving and came in last at 11%.
In 2004, despite some fluctuations, face to face course experience an exponential a growth and reach a peak around 40% and the figure of it decreased sightly from 47% to 40%. The proportion of correspondence courses and online courses deadline sightly to 10% and 3%, respectively.
