Table 1. Union Affiliation of Employed Native-Born and Immigrant Wage and Salary Workers Age 16 and Older, 2005 to 2010 (in thousands)
Year Total Native born Immigrants
  Total employed Members of unions Represented by unions Total Employed Members of Unions* Represented by unions** Total employed Members of unions* Represented by unions**
        Number          
2005 123,877 16,289 17,866 106,405 14,570 16,075 17,472 1,719 1,791
2006 126,795 16,461 18,007 107,878 14,485 15,854 18,917 1,976 2,153
2007 129,020 16,124 17,547 109,389 13,950 15,244 19,631 2,174 2,303
2008 129,237 16,319 17,867 110,109 14,408 15,825 19,128 1,911 2,042
2009 124,203 16,043 17,606 105,275 14,047 15,374 18,928 1,996 2,232
2010 122,805 14,765 16,331 104,014 13,071 14,390 18,791 1,694 1,940
        Percent          
2005 100.00 13.1 14.4 100.00 13.7 15.1 100.00 9.8 10.2
2006 100.00 13.0 14.2 100.00 13.4 14.7 100.00 10.4 11.4
2007 100.00 12.5 13.6 100.00 12.8 13.9 100.00 11.1 11.7
2008 100.00 12.6 13.8 100.00 13.1 14.4 100.00 10.0 10.7
2009 100.00 12.9 14.2 100.00 13.3 14.6 100.00 10.5 11.8
2010 100.00 12.0 13.3 100.00 12.6 13.8 100.00 9.0 10.3
Notes: * Data refer to members of a labor union or an employee association similar to a union.
** Data refer to members of a labor union or an employee association similar to a union, as well as to workers who report no union affiliation but whose jobs are covered by a union or an employee association contract.
Source: Current Population Survey, March Supplement, 2005 to 2010.


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