DOE Occupational Radiation Exposure: 2011 Annual Report Exhibit B-19. Internal Dose by Labor Category, 2009-2011.
Labor Category	No. of Individuals with New Intakes*						Collective CED Dose from Intake (person-rem)						Average CED
	2009		2010		2011		2009		2010		2011		2009		2010		2011
Agriculture	1		2		1		0.013		0.035		0.034		0.013		0.018		0.034
Construction	194		263		239		6.145		6.512		5.344		0.032		0.025		0.022
Laborers	69		87		98		4.300		3.902		5.109		0.062	|	0.045		0.052	|
Management	122		122		110		4.273		4.999		4.651		0.035		0.041		0.042
Miscellaneous	21		47		29		0.458		33.229	|	2.024		0.022		0.707	|	0.070
Production	338	|	404	|	383	|	19.482	|	21.790		16.169	|	0.058		0.054		0.042
Scientists	156		178		158		3.389		4.292		3.403		0.022		0.024		0.022
Service	7		9		11		0.291		0.353		0.507		0.042		0.039		0.046
Technicians	162		200		169		7.131		7.344		5.542		0.044		0.037		0.033
Transport	4		65		69		0.025		2.077		1.416		0.006		0.032		0.021
Unknown	228		288		263		5.655		11.353		6.813		0.025		0.039		0.026
Totals	1,302		1,665		1,530		51.162		95.886		51.012		0.039		0.058		0.033
*Only included intakes that occurred during the monitoring year. Individuals may be counted more than once. Note: Boxed values (gray background) indicate the greatest value in each column.