Group 1, Construction and extraction.
Item 1, 2007 7.6.
Item 2, 2010 20.1.
Item 3, 2012 14.4.
Group 2, Hired farmworkers.
Item 1, 2007 7.6.
Item 2, 2010 15.9.
Item 3, 2012 13.5.
Group 3, Transportation and shipping.
Item 1, 2007 6.
Item 2, 2010 12.4.
Item 3, 2012 10.3.
Group 4, Production.
Item 1, 2007 5.7.
Item 2, 2010 13.1.
Item 3, 2012 9.3.
Group 5, Service.
Item 1, 2007 5.9.
Item 2, 2010 10.3.
Item 3, 2012 9.1.
Group 6, All occupations.
Item 1, 2007 4.7.
Item 2, 2010 9.7.
Item 3, 2012 8.1.