U.S. - Investigation 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	4,593	7.2%	1.5%	0.8%	43,044	68.9%	46.0%	33.6%
	2007	4,768	8.2%	1.9%	0.9%	49,147	72.5%	49.2%	31.5%
	2006	4,679	8.1%	1.9%	0.8%	46,525	70.4%	46.6%	28.0%
	2005	4,684	8.0%	1.8%	0.7%	43,375	67.7%	42.3%	22.0%
	2004	4,692	8.6%	1.9%	0.7%	46,892	68.5%	42.8%	22.2%
	2003	4,705	8.8%	2.0%	0.7%	45,780	67.4%	42.3%	19.1%
	2002	4,791	9.7%	2.6%	0.9%	55,145	72.7%	48.9%	24.6%
	2001	4,702	11.5%	2.6%	0.8%	54,791	72.2%	41.1%	15.6%
	2000	4,829	11.6%	2.3%	0.8%	55,014	71.0%	37.7%	15.6%
	1999	4,831	11.6%	2.2%	0.7%	52,312	69.2%	36.0%	13.7%
	1998	5,001	10.9%	2.0%	0.5%	49,829	67.5%	32.6%	9.5%