Northern: Wochenarbeitszeit (vertraglich) (OLS)

	Model 01	Model 02	Model 03	Model 04
1965-69	0.00	0.00	0.00	0.00
1970-74	-0.13	-0.23	-0.23	-0.19
1975-79	-0.26	-0.26	-0.27	-0.32
1980-84	-0.27	-0.39	-0.39	-0.55
1985-90	-0.24	-0.17	-0.17	-0.44
female		-3.58*	-3.59*	-3.57*
male		0.00	0.00	0.00
low (1-2)			0.62
mid (3-4)			-0.20
hi (5-6)			0.00
DK				-2.43*
FI				-0.06
NO				-1.95*
SE				0.00
Constant	37.22*	39.04*	39.09*	40.07*
Observations	8479	8479	8479	8479
r2	0.000	0.044	0.044	0.059
* p < .05