The given line chart illustrate the proportion of workers in services, agriculture and industry in South Korea from 1981 and 2011.
Overall, the percentage of workers in service was the largest consistently over 20 years. While the portion of industry was the smallest in 1981, it surpass agriculture before 1986, and occupied nearly 30% at the end. the proportion of the worker in agriculture decreased gradually, which dropped to roughly 5% in 2011.
Looking at the graph more closely, one can see that the proportion of services increased rapidly from 1981 to 2011. Even though the portion of service was under 40% in 1981, it became roughly 70% in 2011. The portion of agriculture was roughly halved from over 30% in 1981 to 15% in 2006, and especially it plunged to 5% in 2011. While the proportion of industry increased gradually until 1991, when the pattern of increasing was converted to diminish, and it was under 30% in the end, which was similar to the proportion in 1981.