The pie charts illustrate various types of courses that students undertook in the years of 1984, 1994, and 2004.
Overall, the majority of the students took face to face courses while the online courses contained the least part of their course percentage in all three periods. Additionally, the percentage rate for 1994 and 2004 remained stable.
Over two thirds of the students attended face to face courses in 1984. However, this rate decreased to 54% ten years later and stayed the same in 2004. The next type of courses were correspondence ones which consisted one fifth of the overall percentage of students in all three years.
The third place accounts for mixed media courses that were followed by 13% of the students in 1984. This percentage of students rose by 2% in the next decade being 15% in 1994 and 2004. An interesting phenomenon can be witnessed as the rate of courses are identical for both periods of 1994 and 2004. Because online courses also were followed by 11% of the overall students in both years. Although the online course was not part of the courses in 1984.
