Type of employment
		Frequency	Percent	Valid Percent	Cumulative Percent
Valid	Professional	18	.8	3.3	3.3
	Skilled worker	84	3.5	15.5	18.9
	Unskilled worker	14	.6	2.6	21.4
	Technician	15	.6	2.8	24.2
	Employee	291	12.3	53.8	78.0
	Self-employed	48	2.0	8.9	86.9
	Other	71	3.0	13.1	100.0
	Total	541	22.8	100.0
Missing	88	499	21.0
	99	167	7.0
	System	1166	49.1
	Total	1832	77.2
Total		2373	100.0