表を表示
| 1980 | 47.3% | 1996 | 49% | 2012 | 51.9% |
| 1981 | 47.9% | 1997 | 49.5% | 2013 | 52.7% |
| 1982 | 49.2% | 1998 | 49.9% | 2014 | 52.2% |
| 1983 | 49.6% | 1999 | 49.8% | 2015 | 51.4% |
| 1984 | 50.2% | 2000 | 49.3% | 2016 | 50.9% |
| 1985 | 50.3% | 2001 | 49.6% | 2017 | 51.5% |
| 1986 | 49.6% | 2002 | 49.9% | 2018 | 51.4% |
| 1987 | 49.8% | 2003 | 49.2% | 2019 | 49.7% |
| 1988 | 48.5% | 2004 | 49.1% | 2020 | 49.4% |
| 1989 | 46.6% | 2005 | 49.1% | 2021 | 49.5% |
| 1990 | 47.4% | 2006 | 49% | 2022 | 48.9% |
| 1991 | 48% | 2007 | 48.6% | 2023 | 48.8% |
| 1992 | 47.5% | 2008 | 49.7% | 2024 | 49.7% |
| 1993 | 49.3% | 2009 | 49.1% | 2025 | 49.7% |
| 1994 | 49.4% | 2010 | 49.8% | 2026 | 49.8% |
| 1995 | 48.1% | 2011 | 50.6% | | |
表を表示
| 1980 | 423億 | 1996 | 1,051億 | 2012 | 2,013億 |
| 1981 | 449億 | 1997 | 1,108億 | 2013 | 2,081億 |
| 1982 | 499億 | 1998 | 1,162億 | 2014 | 2,116億 |
| 1983 | 533億 | 1999 | 1,208億 | 2015 | 2,136億 |
| 1984 | 583億 | 2000 | 1,264億 | 2016 | 2,183億 |
| 1985 | 621億 | 2001 | 1,311億 | 2017 | 2,283億 |
| 1986 | 640億 | 2002 | 1,362億 | 2018 | 2,362億 |
| 1987 | 670億 | 2003 | 1,383億 | 2019 | 2,383億 |
| 1988 | 697億 | 2004 | 1,457億 | 2020 | 2,292億 |
| 1989 | 726億 | 2005 | 1,524億 | 2021 | 2,507億 |
| 1990 | 783億 | 2006 | 1,594億 | 2022 | 2,745億 |
| 1991 | 831億 | 2007 | 1,671億 | 2023 | 2,939億 |
| 1992 | 864億 | 2008 | 1,747億 | 2024 | 3,082億 |
| 1993 | 925億 | 2009 | 1,707億 | 2025 | 3,192億 |
| 1994 | 975億 | 2010 | 1,808億 | 2026 | 3,281億 |
| 1995 | 1,013億 | 2011 | 1,916億 | | |
表を表示
| 1980 | 57.1% | 1996 | 53.1% | 2012 | 56.2% |
| 1981 | 64% | 1997 | 51.6% | 2013 | 55.9% |
| 1982 | 62% | 1998 | 51% | 2014 | 55.4% |
| 1983 | 64.6% | 1999 | 50.5% | 2015 | 53.9% |
| 1984 | 61.4% | 2000 | 49.4% | 2016 | 53.4% |
| 1985 | 60.7% | 2001 | 49.4% | 2017 | 52.3% |
| 1986 | 59.9% | 2002 | 49.9% | 2018 | 52.5% |
| 1987 | 58% | 2003 | 51% | 2019 | 51.8% |
| 1988 | 56% | 2004 | 49.3% | 2020 | 58.5% |
| 1989 | 54.4% | 2005 | 51.9% | 2021 | 54.9% |
| 1990 | 54.4% | 2006 | 48.8% | 2022 | 52.5% |
| 1991 | 55.6% | 2007 | 48.6% | 2023 | 52.8% |
| 1992 | 55.9% | 2008 | 50.8% | 2024 | 54.1% |
| 1993 | 57.1% | 2009 | 54.5% | 2025 | 55% |
| 1994 | 54.7% | 2010 | 53.9% | 2026 | 54.9% |
| 1995 | 52.6% | 2011 | 55% | | |
表を表示
| 1980 | 510億 | 1996 | 1,137億 | 2012 | 2,182億 |
| 1981 | 599億 | 1997 | 1,156億 | 2013 | 2,206億 |
| 1982 | 628億 | 1998 | 1,185億 | 2014 | 2,244億 |
| 1983 | 694億 | 1999 | 1,224億 | 2015 | 2,239億 |
| 1984 | 713億 | 2000 | 1,266億 | 2016 | 2,287億 |
| 1985 | 749億 | 2001 | 1,305億 | 2017 | 2,317億 |
| 1986 | 773億 | 2002 | 1,364億 | 2018 | 2,410億 |
| 1987 | 779億 | 2003 | 1,435億 | 2019 | 2,481億 |
| 1988 | 805億 | 2004 | 1,464億 | 2020 | 2,711億 |
| 1989 | 848億 | 2005 | 1,608億 | 2021 | 2,780億 |
| 1990 | 899億 | 2006 | 1,586億 | 2022 | 2,947億 |
| 1991 | 964億 | 2007 | 1,669億 | 2023 | 3,181億 |
| 1992 | 1,017億 | 2008 | 1,786億 | 2024 | 3,353億 |
| 1993 | 1,069億 | 2009 | 1,896億 | 2025 | 3,530億 |
| 1994 | 1,079億 | 2010 | 1,958億 | 2026 | 3,618億 |
| 1995 | 1,108億 | 2011 | 2,084億 | | |