Decriptive statistics:全国-C2					
	(1)	(2)	(3)	(4)	(5)
VARIABLES	N	mean	sd	min	max
					
overtime	3,026.000	0.812	0.391	0.000	1.000
aveincom	3,026.000	7.290	6.736	2.000	142.000
					
