CYCLICAL FLUCTUATIONS IN MIGRATION 149 
TABLE 42.—NUMBER OF IMMIGRANTS, BY SELECTED OCCUPATIONAL GROUPS 
1899-1924 
Thousands of persons 
- " ToTAL 
YEAR © Tyur- | LaBor- Yo ey. FarM- Ser SkiLgp DROFES- No oc- 
Folge GRANT | ERS i ERS VANTS SIONAL CUPATION 
URE ALIENS 
1899 311.7 92.0 17.3 4.0 34.1 44.0 2.0 109.4 
1900 448.6 | 163.5 31.9 54 40.3 61.4 2.4 134.9 
1001 487.9 | 161.9 | 54.8 3.0 42.0 64.5 2.7 148.7 
1902 648.7 242.7 80.6 8.2 69.9 79.8 2.9 153.2 
1903 857.0 320.6 77.5 13.4 92.7 124.7 7.0 199.7 
1904 812.9 210.4 85.8 4.5 104.9 152.2 13.3 214.7 
1905 1,026.5 287.4 142.2 18.5 125.5 180.1 | 13.6 232.0 
1906 1,100.7 226.3 239.1 15.3 116.0 177.1 | 13.8 285.5 
1907 1,285.3 291.1 323.9 13.5 121.6 190.3 12.6 204.7 
1908 ' 782.9 146.1 138.8 7.7 89.9 123.6 | 11.1 242.7 
1909 751.8 174.8 171.3 8.9 64.6 87.2 8.1 221.3 
1910 1,041.6 214.3 288.7 11.8 96.7 138.6 10.3 260.0 
1911 878.6 : 156.0 176.0 9.7 107.2 148.9 12.0 246.0 
1912 | 8382 135.7 184.2 | 7.7 1165 127.0 11.7 231.1 
1913 1,197.9 221.0 320.1 | 13.2 140.2 160.1 13.5 297.2 
1914 1,218.5 226.4 288.1 14.4 144.4 173.2 14.6 320.2 
1915 326.7 | 48.4 207 6.5 39.8 55.6 | 12.3 116.9 
1916 298.8 | 55.8 26.2 £8 203 45.5 9.8 104.8 
1917 295.4 | 51.1 22.3 7.8 31.9 48.38 8.4 104.4 
1918 110.6 | 14.7 4.5 2.6 7.8 21.6 4.6 45.0 
1919 141.1 | 18.3 4.4 3.9 6.3 27.5 6.3 58.3 
1920 430.0 i 81.7. 15.3 | 12.2 | 37.2 70.0 | 12.4 | 173.1 
1921 805.2 | 160.6 | 32.4 | 22.3 102.5 131.8 | 14.6 ' 301.1 
1922 309.6 32.7 10.5 7.7 445 51.6 | 11.0 131.0 
1923 522.9 | 8.6 25. 1.5 52.2 106.2 16.5 191.6 
1924 706.9 1108.0 27.5 20.3 51.7 150.7 24.8 277.9 
*Compiled from the annual reports of the Commissioner General of Immigration, U. S. Bureau of 
Immigration. 
Emigration of Various Occupational Groups. 
A study of the fluctuations in the number of emigrants of the 
principal occupation groups (Chart 30) leads to conclusions similar 
to those obtained from the study of immigration. On the whole, 
the emigrant groups of laborers and farmers show the most marked 
tendency to be large in depression years and low in boom years, 
though the differences are not completely uniform or very striking. 
The professional group shows relatively the least adjustment to 
industrial conditions.