表を表示
| 1980 | 36.9% | 1996 | 42.8% | 2012 | 38.4% |
| 1981 | 38.9% | 1997 | 43.5% | 2013 | 38.5% |
| 1982 | 39.5% | 1998 | 43.5% | 2014 | 38.5% |
| 1983 | 39% | 1999 | 43.4% | 2015 | 40% |
| 1984 | 38.8% | 2000 | 43.2% | 2016 | 40.3% |
| 1985 | 38.7% | 2001 | 41.6% | 2017 | 40.3% |
| 1986 | 39.5% | 2002 | 40.2% | 2018 | 41% |
| 1987 | 39.7% | 2003 | 40.1% | 2019 | 40.6% |
| 1988 | 40.3% | 2004 | 39.9% | 2020 | 41.4% |
| 1989 | 40.5% | 2005 | 40.1% | 2021 | 42.4% |
| 1990 | 42.2% | 2006 | 40.5% | 2022 | 41% |
| 1991 | 43.1% | 2007 | 40.3% | 2023 | 41.6% |
| 1992 | 43.3% | 2008 | 39% | 2024 | 42.2% |
| 1993 | 42.5% | 2009 | 39.5% | 2025 | 42.2% |
| 1994 | 42.1% | 2010 | 38.3% | 2026 | 41.9% |
| 1995 | 42.2% | 2011 | 38.3% | | |
表を表示
| 1980 | 1,191億 | 1996 | 3,681億 | 2012 | 7,017億 |
| 1981 | 1,434億 | 1997 | 3,945億 | 2013 | 7,317億 |
| 1982 | 1,533億 | 1998 | 4,096億 | 2014 | 7,689億 |
| 1983 | 1,642億 | 1999 | 4,377億 | 2015 | 7,953億 |
| 1984 | 1,793億 | 2000 | 4,778億 | 2016 | 8,163億 |
| 1985 | 1,936億 | 2001 | 4,765億 | 2017 | 8,636億 |
| 1986 | 2,079億 | 2002 | 4,794億 | 2018 | 9,171億 |
| 1987 | 2,279億 | 2003 | 5,038億 | 2019 | 9,387億 |
| 1988 | 2,523億 | 2004 | 5,330億 | 2020 | 9,196億 |
| 1989 | 2,722億 | 2005 | 5,697億 | 2021 | 1.08兆 |
| 1990 | 2,934億 | 2006 | 6,060億 | 2022 | 1.18兆 |
| 1991 | 3,023億 | 2007 | 6,364億 | 2023 | 1.23兆 |
| 1992 | 3,111億 | 2008 | 6,456億 | 2024 | 1.31兆 |
| 1993 | 3,178億 | 2009 | 6,213億 | 2025 | 1.37兆 |
| 1994 | 3,332億 | 2010 | 6,385億 | 2026 | 1.43兆 |
| 1995 | 3,513億 | 2011 | 6,789億 | | |
表を表示
| 1980 | 40.9% | 1996 | 45.9% | 2012 | 40.9% |
| 1981 | 41.8% | 1997 | 43.5% | 2013 | 40% |
| 1982 | 46.4% | 1998 | 43.4% | 2014 | 38.4% |
| 1983 | 47% | 1999 | 41.8% | 2015 | 40% |
| 1984 | 46.8% | 2000 | 40.6% | 2016 | 40.8% |
| 1985 | 47.5% | 2001 | 41.1% | 2017 | 40.5% |
| 1986 | 46.8% | 2002 | 40.4% | 2018 | 40.7% |
| 1987 | 45.4% | 2003 | 40.3% | 2019 | 40.6% |
| 1988 | 44.8% | 2004 | 39.1% | 2020 | 52.4% |
| 1989 | 45.3% | 2005 | 38.5% | 2021 | 45.5% |
| 1990 | 48.1% | 2006 | 38.7% | 2022 | 40.4% |
| 1991 | 51.4% | 2007 | 38.5% | 2023 | 41.8% |
| 1992 | 52.5% | 2008 | 38.8% | 2024 | 44.3% |
| 1993 | 51.5% | 2009 | 43.4% | 2025 | 44% |
| 1994 | 49% | 2010 | 43.1% | 2026 | 44.6% |
| 1995 | 47.7% | 2011 | 41.6% | | |
表を表示
| 1980 | 1,322億 | 1996 | 3,944億 | 2012 | 7,478億 |
| 1981 | 1,541億 | 1997 | 3,942億 | 2013 | 7,602億 |
| 1982 | 1,801億 | 1998 | 4,083億 | 2014 | 7,655億 |
| 1983 | 1,979億 | 1999 | 4,210億 | 2015 | 7,965億 |
| 1984 | 2,160億 | 2000 | 4,486億 | 2016 | 8,255億 |
| 1985 | 2,374億 | 2001 | 4,704億 | 2017 | 8,660億 |
| 1986 | 2,465億 | 2002 | 4,822億 | 2018 | 9,091億 |
| 1987 | 2,609億 | 2003 | 5,054億 | 2019 | 9,391億 |
| 1988 | 2,806億 | 2004 | 5,227億 | 2020 | 1.16兆 |
| 1989 | 3,039億 | 2005 | 5,476億 | 2021 | 1.15兆 |
| 1990 | 3,345億 | 2006 | 5,786億 | 2022 | 1.16兆 |
| 1991 | 3,610億 | 2007 | 6,077億 | 2023 | 1.24兆 |
| 1992 | 3,772億 | 2008 | 6,425億 | 2024 | 1.38兆 |
| 1993 | 3,846億 | 2009 | 6,823億 | 2025 | 1.43兆 |
| 1994 | 3,882億 | 2010 | 7,175億 | 2026 | 1.52兆 |
| 1995 | 3,970億 | 2011 | 7,376億 | | |