Estimated Lifetime Earnings in 1978 for year-round, full-time workers 20 to 64 by years of school completed and age
(lifetime earning—thousands of dollars)
|Less than high school||522||492||406||262||96|
|High school graduats or equivalents||647||608||484||318||119|
|four years off college||852||854||718||497||190|
|Less than high school||312||273||216||143||67|
|High school graduats or equivalents||391||354||282||190||72|
|four years off college||514||482||399||277||103|
圖表的分析可按三種文化水平, 男女之分和年齡等線索進行分析. 由於線索較多,內容豐富,寫作時要有壹定條理,有重點,突出文章的邏輯性, 註意20-30歲時的收入變化.
The two charts show the estimated lifetime earnings by the year-round and full-time workers from the age of 20 to the age of 60. In this estimation, which was made in 1979, the workers were divided into three groups according to their education and into two charts according to sex.
The first point that can be seen clearly is that the earnings of workers, whether men or women, varied according to their education from the age of 20 right up to the age of 60. Specifically, the more education they receiveed, the more they could earn. For instance, among men of 20, those with four years of college education could earn 852,000 dollars; those with high school education or the equivlent could earn 647,000 dollars, and those with less than high school education 522,000 dollars.
The second point indicated in the charts is that their lifetime earnings decreased as people got older. For instance, men with high schol education ot the equivlent had an estimated lie earning of 647,000 dollars at the age of 20, 608,000 at the age of 30, 484,000 at 40, 316,000 at fifty, and 119,000 at 60. It was the same case for both men and women and for people with different levels of education. Besides, the decreeases got much sharper as the age increased. The only exception was the difference between men of 20 and of 30 with four years of college education. The earning was 852,000 dollars for men of 20, but 854,000 dollars for men of 30, with an increase of 2000 dollars.
Lastly, a comparison between the two charts show that the lifetime earnings for women were lower than those for men even if they had the same level of education. Take the workers at the age of 40 or an example. While men with college education could earn 718,000 dollars, women with the same education could earn only 399,000 dollars. With high school education, men could earn 484,000 dollars and women only 282,000. For those with less than high school education, the figure or men was 406,000 and that or womem only 216,000. The other diference is that though both men and women earned less as they got older, the prime time for men was at the age of thirty while that for women was the age of 20.
What can be inteerpreted from the two charts is that, geneally speaking, people were paid according to their education and ability, but there was still discrimination against women.