U.S. - Investigation and security services - by Year
Introductory text includes scope and methodology. Table includes only establishments with payroll. Nonemployers are shown separately. For descriptions of column headings and rows (industries), click on the appropriate underlined element in the table.

More data	Year	Firms by employment size of enterprise				Paid employees by employment size of enterprise
		Total	20 +	100 +	500 +	Total	20 +	100 +	500 +
	2008	19,795	17.2%	4.8%	1.3%	831,834	91.5%	78.9%	62.2%
	2007	19,720	16.8%	4.6%	1.2%	777,680	91.1%	77.7%	60.6%
	2006	19,216	17.5%	4.8%	1.3%	802,010	91.8%	79.2%	62.8%
	2005	19,043	16.8%	4.7%	1.2%	767,018	91.5%	78.9%	61.9%
	2004	18,730	17.3%	4.7%	1.1%	754,514	91.3%	78.3%	60.8%
	2003	18,529	17.9%	5.0%	1.2%	747,088	91.3%	78.0%	59.6%
	2002	18,070	17.5%	5.0%	1.2%	732,002	91.4%	78.6%	60.7%
	2001	17,713	17.6%	5.0%	1.2%	720,465	91.6%	78.4%	60.9%
	2000	17,375	17.7%	5.0%	1.3%	711,003	91.6%	78.4%	61.2%
	1999	17,423	17.7%	5.0%	1.3%	707,187	91.5%	78.2%	61.0%
	1998	17,594	17.5%	4.7%	1.1%	694,619	91.4%	77.7%	60.4%