The pie charts below show the different types of courses, which were followed by the students during the years of 1984, 1994 and 2004.

The pie charts illustrate the types of

courses

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chosen by students in three different years: 1984, 1994, and 2004.

Overall

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, the main course categories remained the same across all periods, including face-to-face, correspondence, and mixed media

courses

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.

However

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, an additional option, online

courses

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, was introduced in 1994 and continued into 2004. The most popular course type throughout the three years was face-to-face learning. In 1984,

this

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method accounted for 67% of student enrollment, but its popularity decreased over time, dropping to 54% in 1994 and

further

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to 40% by 2004. Correspondence

courses

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were the second most

favored

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option in 1984 and 1994, both accounting for around 20% of the total.

However

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, by 2004, mixed media

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had become more popular, making up 35% of student enrollments, surpassing correspondence

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. The least popular

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varied across the years. In 1984, mixed media

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were the least chosen, representing only 13% of the total. In 1994, with the introduction of online

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,

this

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new category became the least

favored

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, with only 11% of students opting for it.

This

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trend continued into 2004, where online

courses

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remained the least chosen option, accounting for just 10%.