The pie charts illustrate the percentage distribution of students enrolled in different types of courses (communication, mixed media, face-to-face, and online) across three decades: 1984, 1994, and 2004.
Overall, communication courses showed minimal variation in their popularity over time, while face-to-face courses experienced the largest decline, primarily due to the emergence of online courses. Mixed media courses, on the other hand, gained significant popularity by the end of the period.
In 1984, face-to-face courses dominated, with 67% of students enrolled in them, making them the most popular option. Communication courses were chosen by 20% of students, while mixed media courses were the least popular, accounting for only 13% of enrollments. Online courses were not available at this time.
By 1994, online courses had been introduced, capturing 11% of enrollments. Consequently, face-to-face course participation dropped to 54%, a decline of 13%. Communication courses remained stable at 20%, while mixed media courses saw a slight increase to 15%.
In 2004, the popularity of face-to-face courses decreased further, falling to 35%. Online courses saw a slight decline, representing 10% of total enrollments. Mixed media courses, however, experienced substantial growth, reaching 35% and accounting for more than a third of all enrollments. Meanwhile, communication courses dropped slightly to 15%, marking the only modest change in their popularity over the three decades.