The provided graphs depict information concerning the total number of students studied in Vietnam between 2015 to 2018 and their purposes for studying English. From an overarching standpoint, individuals aged 17-24 constituted the largest group of English learners throughout the period, while overseas education remained the most common reason for learning English.
Looking at the bar chart, learners aged 13-16 stood at the lowest level, at approximately 2 million, whereas the corresponding figure for those aged 17-24 accounted for 8 million. As for the remaining age groups, both the 25-34 and 35+ categories reached about 3 million learners. Over the next two years, all age groups experienced gradual growth. However, the most substantial rise occurred in 2018, when the figures for all categories peaked. In particular, the number of learners aged 17-24 rose to approximately 41 million, which was considerably higher than that in 2015. Meanwhile, the figure for the 13-16 age group increased to around 8 million, the numbers for individuals aged 25-34 and over 35 remained stable at about 7 million and 5 million respectively.
Turning to the pie charts, overseas education accounted for the largest proportion in both years, reaching 58% in 2015 and 43% in 2018. In terms of the lowest figure, Immigration recorded the smallest percentage in 2015, at about 19%, whereas school graduation was the least common category in 2018, at just 6%. For context, school graduation and scholarship opportunities were not present in 2015, while in 2018 they accounted for the low proportions.
To conclude, the data illustrates changes in the purposes for learning English over time and the age groups of students, with the highest proportion recorded among 17-24 year olds, possibly due to their intention to study abroad.