year	incvote	prespop	persfin	tenure
1948	52.4	37.5	116	1
1952	44.6	30.0	94	1
1956	57.8	69.0	110	0
1960	49.9	62.6	108	1
1964	61.3	74.3	120	0
1968	49.6	42.2	114	1
1972	61.8	59.0	129	0
1976	48.9	46.6	103	1
1980	44.7	36.8	79	0
1984	59.2	53.8	121	0
1988	53.9	49.4	111	1
1992	46.5	39.0	97	1
1996	54.6	54.0	114	0