# Years Size Links
DPJ 2001–2015 64.2%
DS 1977–1986 7.3%
JCP 1987–2015 12.6%
JRP 1994–2015 10.1%
Komeito 1977–1994 10.9%
LDP 1975–2015 60.4%
LP 2001–2003 9.9%
NFP 1995–2000 28.0%
NK 2001–2015 13.1%
SDPJ 1992–2012 15.4%
Socialist 1975–1991 24.4%