°Electorat des partis
		°Electorat des partis, en %
		Age				Formation				Revenu
		18–39 ans	40–59 ans	60+ ans		Basse	Moyenne	Haute		Inférieur	Moyen	Supérieur
UDC	1995	12.0	16.1	18.5		16.8	15.9	11.3		18.3	15.0	14.5
	1999	21.5	22.8	26.4		31.9	24.4	17.2		29.3	27.8	17.0
	2003	23.3	25.7	30.3		39.5	27.5	19.1		25.1	30.6	23.6
	2007	27.5	27.2	36.3		37.9	37.1	15.9		31.1	34.3	27.1
PSS	1995	27.0	23.9	15.3		15.0	22.3	26.1		23.5	21.6	23.4
	1999	25.5	24.4	19.3		20.2	21.7	29.1		20.1	20.8	27.0
	2003	23.5	26.0	18.9		19.1	23.4	24.3		22.5	24.0	24.2
	2007	17.8	25.2	18.4		17.9	18.3	26.8		20.0	20.7	21.5
PRD	1995	17.5	22.5	26.3		18.1	21.3	25.0		15.9	20.8	24.5
	1999	19.6	20.7	21.8		13.2	20.0	24.9		15.2	16.9	24.5
	2003	16.2	16.6	18.8		10.5	16.7	21.3		15.1	12.9	22.1
	2007	14.4	16.4	18.8		14.8	14.5	22.4		12.3	15.1	21.5
PDC	1995	16.5	16.5	20.2		16.6	16.7	12.2		15.0	20.2	15.1
	1999	16.8	15.6	17.7		24.0	17.3	11.4		21.6	20.2	12.7
	2003	14.3	12.4	16.8		14.9	13.8	15.1		13.8	15.6	13.1
	2007	17.1	14.4	15.5		18.8	14.7	15.3		16.1	14.3	15.3
PES	1995	10.5	5.5	3.3		1.9	7.5	6.6		8.0	6.1	6.7
	1999	6.5	6.8	1.1		2.5	5.1	6.4		2.8	3.6	7.4
	2003	11.6	8.1	2.7		3.8	6.7	10.0		9.7	5.9	6.5
	2007	16.3	11.3	5.6		5.9	9.4	13.4		13.1	8.5	10.3