2022	Democratic	0	0.0%
	Republican	0	0.0%

2018	Democratic	437,879	42.3%
	Republican	598,392	57.7%

2014	Democratic	274,257	32.5%
	Republican	570,110	67.5%

2010	Democratic	341,324	41.5%
	Republican	481,704	58.5%

2006	Democratic	286,148	35.6%
	Republican	516,940	64.4%

2002	Democratic	354,157	43.6%
	Republican	457,407	56.4%

1998	Democratic	264,567	38.0%
	Republican	431,190	62.0%

1994	Democratic	438,975	55.5%
	Republican	321,032	40.6%
	Other	31,148	3.9%

1990	Democratic	463,207	61.4%
	Republican	290,877	38.6%

1986	Democratic	444,937	55.6%
	Republican	355,656	44.4%

1982	Democratic	418,428	57.4%
	Republican	294,980	40.5%
	Other	15,198	2.1%

1978	Democratic	392,739	56.8%
	Republican	277,439	40.1%
	Other	20,851	3.0%

1976	Democratic	487,755	56.0%
	Republican	340,223	39.1%
	Other	43,036	4.9%

1974	Democratic	360,119	50.0%
	Republican	318,534	44.2%
	Other	41,338	5.7%

1972	Democratic	346,041	41.8%
	Republican	458,196	55.4%
	Other	23,114	2.8%

1970	Democratic	292,572	44.1%
	Republican	356,570	53.7%
	Other	14,662	2.2%

1968	Democratic	306,232	40.0%
	Republican	438,256	57.2%
	Other	21,361	2.8%

1966	Democratic	274,065	43.6%
	Republican	328,810	52.3%
	Other	26,393	4.2%

1964	Democratic	352,567	45.4%
	Republican	395,199	50.8%
	Other	29,643	3.8%

1962	Democratic	254,837	42.9%
	Republican	325,410	54.8%
	Other	13,816	2.3%

1960	Democratic	403,185	47.4%
	Republican	432,812	50.9%
	Other	14,562	1.7%

1958	Democratic	335,286	50.6%
	Republican	310,470	46.9%
	Other	16,235	2.5%

1956	Democratic	368,597	46.5%
	Republican	408,560	51.5%
	Other	15,851	2.0%

1954	Democratic	243,398	41.8%
	Republican	325,417	55.8%
	Other	13,900	2.4%

1952	Democratic	306,519	38.2%
	Republican	478,242	59.5%
	Other	18,534	2.3%

1950	Democratic	241,235	41.8%
	Republican	319,849	55.4%
	Other	16,641	2.9%

1914	Democratic	178,076	37.0%
	Republican	196,844	40.9%
	Independent	62,424	13.0%
	Other	44,438	9.2%

1912	Democratic	156,257	45.1%
	Republican	164,632	47.5%
	Independent	25,883	7.5%

1910	Democratic	124,992	40.0%
	Republican	167,715	53.7%
	Independent	16,571	5.3%
	Other	2,888	0.9%