| 
				
				
				
				
					| age in current year |  
						 | 
 |  
					|       Mean (SD) | 38.90 (3.03) | 38.93 (2.86) |  
					| married | 
 | 
 |  
					|       Mean (SD) | 0.50 (0.50) | 0.46 (0.50) |  
					| current grade completed | 
 | 
 |  
					|       Mean (SD) | 12.23 (2.57) | 13.06 (2.87) |  
					| lives in south | 
 | 
 |  
					|       Mean (SD) | 0.71 (0.46) | 0.51 (0.50) |  
					| hourly wage | 
 | 
 |  
					|       Mean (SD) | 5.97 (3.24) | 8.61 (4.58) |  
					| usual hours worked | 
 | 
 |  
					|       Mean (SD) | 38.24 (7.63) | 39.38 (5.20) |  
					| job tenure (years) | 
 | 
 |  
					|       Mean (SD) | 6.77 (5.75) | 7.76 (5.49) |  
 |