The pie charts illustrate different mediums of courses followed by students in the years 1984, 1994 and 2004.
Overall, face to face courses were the most popular medium in the given timeframe. Online courses were introduced in the later years. The preference for mixed media courses increased in the following decades. On the contrary, a downward trend can be seen for the correspondence courses.
In 1984, face to face courses recorded more than half of the total proportion, accounting for 67% of students. Meanwhile, 20% and 13% of students chose correspondence and mixed media courses respectively.
In 1994 and 2004, online courses accounted for 11% and 10% of students respectively. 54% of learners enrolled for face to face courses in 1994, while only 40% of students registered in 2004. The percentage for mixed media courses was just 15% in 1994, before it rose significantly to 35% in the year 2004. Additionally, in 1994, 20% of students preferred correspondence courses, while 15% of students preferred the same course in the year 2004.
