U.S. - Bituminous coal underground mining - 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.

D = Withheld to avoid disclosure
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	255	50.2%	22.0%	10.2%	42,434	98.2%	91.6%	76.2%
	2007	252	53.6%	22.6%	11.1%	39,749	97.8%	89.4%	74.3%
	2006	289	57.1%	21.8%	10.4%	40,340	98.0%	88.2%	73.6%
	2005	296	57.4%	19.6%	9.5%	39,699	97.9%	86.7%	73.7%
	2004	288	54.5%	18.1%	9.4%	37,622	97.7%	86.0%	73.5%
	2003	312	52.2%	17.6%	8.7%	35,945	D	D	71.4%
	2002	357	50.1%	17.9%	8.4%	41,209	D	D	73.7%
	2001	384	44.0%	16.9%	7.3%	38,848	96.7%	86.5%	71.1%
	2000	366	51.4%	16.4%	7.7%	38,644	96.7%	83.6%	71.1%
	1999	392	53.1%	15.8%	7.4%	42,366	97.2%	84.0%	71.9%
	1998	439	51.9%	14.4%	7.1%	45,705	96.8%	82.0%	71.3%