Year Democratic
Party
Republican
Party
Independent
/ Other
Majority
1865 0 0 124 124
1868 14 110 0 96
1870 0 100 24(a) 76
1872 22 102 0 80
1874 0 91 33(b) 58
1876 64 60 0 4
1878 121 3 0 118
1880 120 4 0 116
1902–
1962
124 0 0 124
1964 123 1 0 122
1966 107 17 0 90
1968 119 5 0 114
1970 115 9 0 109
1972 107 17 0 90
1974 110 14 0 96
1976 114 10 0 104
1978 111 13 0 98
1980 110 14 0 96
1982 108 16 0 92
1984 102 22 0 80
1986 98 26 0 72
1988 94 30 0 64
1990 89 35 0 54
1992 84 40 0 44
1994 72 52 0 20
1996 54 70 0 16
1998 58 66 0 12
2000 55 69 0 14
2002 51 73 0 22
2004 50 74 0 24
2006 51 73 0 22
2008 52 72 0 20
2010 47 76 0 29
2012 45 78 0 30