Table 3.

Summary of County Characteristics

Variable	Mean	SD
Unemployment rate, 2006	4.9	1.7
% Non-Hispanic black	8.7	14.5
% Hispanic	6.2	12.1
% Foreign-born	3.4	4.9
% No high school diploma	22.7	8.7
% Bachelors degree+	16.5	7.8
% Workers agriculture, forestry, fishing, hunting, mining	7.3	7.6
% Workers construction	7.7	2.4
% Workers education, health, social services	20.3	4.4
% Workers manufacturing	16.0	9.1
Oil and gas production, 2006 (yes)	0.349	-----
Metropolitan Status
Large Metropolitan (1 million+ population)	0.137	-----
Small/medium metropolitan (250,000–1 million pop)	0.233	-----
Large nonmetropolitan, adjacent to metro	0.068	-----
Large nonmetropolitan, not adjacent to metro	0.029	-----
Rural, adjacent to metropolitan	0.189	-----
Rural, not adjacent to metropolitan	0.273	-----
N=3097

^*Characteristics measured in 2000, except unemployment rate and oil/gas production (2006) and metropolitan status (2003)