Model answer 02:
The given graph illustrates the employment patterns over a 70 year timescale in the USA.
In 1930, the USA labor force concentrated on farming,fishing and foresting, while the employment of industry, sales and offices, technology and other services were at such a low percentage. However, through 70 years, the number of employee in farming, fishing and foresting decreased dramatically in contrast of sales and offices, industrial and technical ones. There was over 75% labor force in farming, fishing and foresting in 1930. But it started to drop down gradually until 1970 and significantly went on dropping and got only approximately 3% in 2010. It was a more than 70% dropped over 70 years.Also other services labor, nevertheless, this patterns slightly decreased about 5% over the exact time length. On the contrary, sales and offices as well as technical and industrial employee number increased slightly from 1930 to 170.Although later developing, Industrial labor also achieved the same proportion with the above two patterns at around 12%. All this three patterns witnessed a robust rise from 1970 to 2010. Whereas sales and offices percentage increased about 8%,that of industry and technology rapidly accelerated and get similarly around 35%. It was approximately 25% raised percentage in overall for these two patterns.
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