Social Democratic Party (Japan)
General election results

Social Democratic Party (Japan)

Section Title: General election results
Table Section Text: None

Election	Leader	No. of seats won	# of constituency votes	% of constituency votes	# of PR Block votes	% of PR Block votes	Government

Japan Socialist Party era

1946	Tetsu Katayama	96 / 466	10,069,907	18.2	Opposition

1947	Tetsu Katayama	144 / 466	7,203,050	26.3	Coalition

1949	Tetsu Katayama	48 / 466	4,129,794	13.8	Opposition

1952	Jōtarō Kawakami Mosaburō Suzuki	116 / 466	8,001,745	22.6	Opposition

1953	Jōtarō Kawakami Mosaburō Suzuki	138 / 466	9,194,548	26.6	Opposition

1955	Jōtarō Kawakami Mosaburō Suzuki	156 / 466	10,812,906	29.2	Opposition

1958	Mosaburō Suzuki	167 / 467	13,155,715	33.1	Opposition

1960	Jōtarō Kawakami	144 / 467	10,839,130	27.4	Opposition

1963	Jōtarō Kawakami	144 / 467	11,906,766	29.0	Opposition

1967	Kōzō Sasaki	140 / 486	12,826,104	27.9	Opposition

1969	Tomomi Narita	90 / 486	10,074,101	21.4	Opposition

1972	Tomomi Narita	118 / 491	11,478,142	21.9	Opposition

1976	Tomomi Narita	123 / 511	11,713,009	20.7	Opposition

1979	Ichio Asukata	107 / 511	10,643,450	19.7	Opposition

1980	Ichio Asukata	107 / 511	11,400,747	19.3	Opposition

1983	Masashi Ishibashi	112 / 511	11,065,082	19.5	Opposition

1986	Masashi Ishibashi	85 / 512	10,412,584	17.2	Opposition

1990	Takako Doi	136 / 512	16,025,473	24.4	Opposition

1993	Sadao Yamahana	70 / 511	9,687,588	15.4	8-party coalition (1993–94)

LDP–JSP–NPS coalition (1994–96)

Social Democratic Party era

1996	Takako Doi	15 / 500	1,240,649	2.2	3,547,240	6.4	LDP–SDP–NPS coalition

2000	Takako Doi	19 / 480	2,315,235	3.8	5,603,680	9.4	Opposition

2003	Takako Doi	6 / 480	1,708,672	2.9	3,027,390	5.1	Opposition

2005	Mizuho Fukushima	7 / 480	996,007	1.5	3,719,522	5.5	Opposition

2009	Mizuho Fukushima	7 / 480	1,376,739	2.0	3,006,160	4.3	DPJ–PNP–SDP coalition

2012	Mizuho Fukushima	2 / 480	451,762	0.7	1,420,790	2.3	Opposition

2014	Tadatomo Yoshida	2 / 475	419,347	0.7	1,314,441	2.4	Opposition

2017	Tadatomo Yoshida	2 / 465	634,719	1.2	941,324	1.7	Opposition

Sentence(s)

In 1986, the Social Democratic Party seats in the house were eighty-five and its share of the votes was 17.2 percent.

final_sentence: In 1986, the Social Democratic Party seats in the house were eighty-five and its share of the votes was 17.2 percent.