100多年前，在美国的中国移民哪一年人数最多？这一年美国国会通过了有关华工的什么法案？

Chinese Exclusion Act
(1882年美国排华法案)
还有Naturalization Act

------------------------------------------
Statistics of the Chinese population in the United States (1840-2004)

Year Total U.S. population Of Chinese origin Percentage
1840 17,069,453 not available n/a
1850 23,191,876 4,018 0.02%
1860 31,443,321 34,933 0.11%
1870 38,558,371 64,199 0.17%
1880 50,189,209 105,465 0.21%
1890 62,979,766 107,488 0.17%
1900 76,212,168 118,746 0.16%
1910 92,228,496 94,414 0.10%
1920 106,021,537 85,202 0.08%
1930 123,202,624 102,159 0.08%
1940 132,164,569 106,334 0.08%
1950 151,325,798 150,005 0.10%
1960 179,323,175 237,292 0.13%
1970 203,302,031 436,062 0.21%
1980 226,542,199 812,178 0.36%
1990 248,709,873 1,645,472 0.66%
2000 281,421,906 2,432,585 0.86%
2004 (Estimation of the US Census) 285,691,501 3,353,486 1.17%