表を表示
| 1980 | 47.6% | 1996 | 52.1% | 2012 | 52.7% |
| 1981 | 48.2% | 1997 | 51.9% | 2013 | 53.7% |
| 1982 | 49.2% | 1998 | 51.6% | 2014 | 53.8% |
| 1983 | 50% | 1999 | 52.1% | 2015 | 53.7% |
| 1984 | 50.8% | 2000 | 51.3% | 2016 | 53.6% |
| 1985 | 51.2% | 2001 | 51.4% | 2017 | 54.3% |
| 1986 | 50.2% | 2002 | 50.7% | 2018 | 54% |
| 1987 | 50.8% | 2003 | 50.3% | 2019 | 53% |
| 1988 | 49.4% | 2004 | 50.4% | 2020 | 52.8% |
| 1989 | 49.1% | 2005 | 50.8% | 2021 | 52.9% |
| 1990 | 49.2% | 2006 | 51.1% | 2022 | 53.7% |
| 1991 | 49.8% | 2007 | 50.6% | 2023 | 51.4% |
| 1992 | 49.4% | 2008 | 50.8% | 2024 | 51.5% |
| 1993 | 50.1% | 2009 | 50.6% | 2025 | 52.4% |
| 1994 | 50.4% | 2010 | 50.6% | 2026 | 52.4% |
| 1995 | 50.9% | 2011 | 51.7% | | |
表を表示
| 1980 | 2,130億 | 1996 | 6,499億 | 2012 | 1.1兆 |
| 1981 | 2,434億 | 1997 | 6,688億 | 2013 | 1.14兆 |
| 1982 | 2,848億 | 1998 | 6,945億 | 2014 | 1.16兆 |
| 1983 | 3,215億 | 1999 | 7,270億 | 2015 | 1.18兆 |
| 1984 | 3,554億 | 2000 | 7,560億 | 2016 | 1.2兆 |
| 1985 | 3,836億 | 2001 | 7,865億 | 2017 | 1.24兆 |
| 1986 | 4,053億 | 2002 | 8,010億 | 2018 | 1.27兆 |
| 1987 | 4,309億 | 2003 | 8,155億 | 2019 | 1.29兆 |
| 1988 | 4,539億 | 2004 | 8,556億 | 2020 | 1.22兆 |
| 1989 | 4,854億 | 2005 | 8,943億 | 2021 | 1.33兆 |
| 1990 | 5,132億 | 2006 | 9,432億 | 2022 | 1.42兆 |
| 1991 | 5,396億 | 2007 | 9,814億 | 2023 | 1.45兆 |
| 1992 | 5,536億 | 2008 | 1.01兆 | 2024 | 1.5兆 |
| 1993 | 5,690億 | 2009 | 9,798億 | 2025 | 1.56兆 |
| 1994 | 5,915億 | 2010 | 1.01兆 | 2026 | 1.6兆 |
| 1995 | 6,183億 | 2011 | 1.07兆 | | |
表を表示
| 1980 | 46.9% | 1996 | 56% | 2012 | 57.9% |
| 1981 | 49.5% | 1997 | 55.6% | 2013 | 58.6% |
| 1982 | 50.8% | 1998 | 54% | 2014 | 58.4% |
| 1983 | 52.6% | 1999 | 53.7% | 2015 | 57.6% |
| 1984 | 53.6% | 2000 | 52.6% | 2016 | 57.4% |
| 1985 | 54.2% | 2001 | 52.8% | 2017 | 57.7% |
| 1986 | 53.4% | 2002 | 53.9% | 2018 | 56.4% |
| 1987 | 52.8% | 2003 | 54.4% | 2019 | 55.3% |
| 1988 | 52% | 2004 | 54% | 2020 | 61.7% |
| 1989 | 50.9% | 2005 | 54.3% | 2021 | 59.5% |
| 1990 | 51.6% | 2006 | 53.7% | 2022 | 58.4% |
| 1991 | 52.7% | 2007 | 53.6% | 2023 | 56.8% |
| 1992 | 54% | 2008 | 54.3% | 2024 | 57.3% |
| 1993 | 56.5% | 2009 | 58% | 2025 | 57.5% |
| 1994 | 55.9% | 2010 | 57.7% | 2026 | 57.4% |
| 1995 | 56% | 2011 | 57% | | |
表を表示
| 1980 | 2,096億 | 1996 | 6,985億 | 2012 | 1.21兆 |
| 1981 | 2,497億 | 1997 | 7,166億 | 2013 | 1.24兆 |
| 1982 | 2,944億 | 1998 | 7,267億 | 2014 | 1.26兆 |
| 1983 | 3,382億 | 1999 | 7,486億 | 2015 | 1.27兆 |
| 1984 | 3,748億 | 2000 | 7,754億 | 2016 | 1.28兆 |
| 1985 | 4,061億 | 2001 | 8,082億 | 2017 | 1.32兆 |
| 1986 | 4,314億 | 2002 | 8,511億 | 2018 | 1.33兆 |
| 1987 | 4,481億 | 2003 | 8,819億 | 2019 | 1.35兆 |
| 1988 | 4,775億 | 2004 | 9,159億 | 2020 | 1.43兆 |
| 1989 | 5,032億 | 2005 | 9,561億 | 2021 | 1.49兆 |
| 1990 | 5,388億 | 2006 | 9,922億 | 2022 | 1.55兆 |
| 1991 | 5,709億 | 2007 | 1.04兆 | 2023 | 1.61兆 |
| 1992 | 6,057億 | 2008 | 1.08兆 | 2024 | 1.67兆 |
| 1993 | 6,416億 | 2009 | 1.12兆 | 2025 | 1.71兆 |
| 1994 | 6,555億 | 2010 | 1.15兆 | 2026 | 1.75兆 |
| 1995 | 6,803億 | 2011 | 1.18兆 | | |