求英语作文关于U.S population的!望哪位大侠能帮我!

白人 73% (1997年) 53% (2050年) 西班牙裔(墨西哥人) 11% (1997年) 25% (2050年) 黑人 12% (1997年) 14% (2050年) 亚裔人4% (1997年) 8% (2050年)
2050年应该是2005年吧)
1.The derivative of the Caucasian American population is significantly lower than that of the minority groups especially of the Hispanic Americans comparing the population data from the years 1997 and 2050.
2.One possible reason for the change may be the high rate of legal and illegal immigration.Another underlying reason may be the advancing of birth control technology and the economical and educational gap between ethnic groups.
3.With the excessive flooding of immigrants from all over the world and especially Mexico,minority groups' population growth by far exceeds that of Caucasians,creating a possible trend of having a minority majority in the future.In addition,states like California and New York with distinctively high growth rates in immigration tend to also create a technological and economical growth gap between the inlands and the coastlines.
行了吧,需要中文翻译吗?