表を表示
| 1988 | 37.7% | 2001 | 44% | 2014 | 47.9% |
| 1989 | 38.5% | 2002 | 43.6% | 2015 | 47.8% |
| 1990 | 43% | 2003 | 43.7% | 2016 | 46.6% |
| 1991 | 44.2% | 2004 | 43.2% | 2017 | 46.3% |
| 1992 | 46.7% | 2005 | 43% | 2018 | 46.1% |
| 1993 | 48% | 2006 | 44% | 2019 | 47% |
| 1994 | 46.2% | 2007 | 45.3% | 2020 | 47.4% |
| 1995 | 44.2% | 2008 | 45.2% | 2021 | 47.2% |
| 1996 | 44.7% | 2009 | 46% | 2022 | 46.8% |
| 1997 | 46.3% | 2010 | 45.6% | 2023 | 46.5% |
| 1998 | 45% | 2011 | 45.5% | 2024 | 47% |
| 1999 | 45.3% | 2012 | 47.5% | 2025 | 47.9% |
| 2000 | 43.9% | 2013 | 48% | 2026 | 47.8% |
表を表示
| 1988 | 2,269億 | 2001 | 5,752億 | 2014 | 7,835億 |
| 1989 | 2,543億 | 2002 | 5,912億 | 2015 | 7,948億 |
| 1990 | 3,094億 | 2003 | 6,121億 | 2016 | 7,940億 |
| 1991 | 3,475億 | 2004 | 6,297億 | 2017 | 8,072億 |
| 1992 | 3,860億 | 2005 | 6,439億 | 2018 | 8,200億 |
| 1993 | 4,088億 | 2006 | 6,856億 | 2019 | 8,474億 |
| 1994 | 4,163億 | 2007 | 7,342億 | 2020 | 7,917億 |
| 1995 | 4,383億 | 2008 | 7,424億 | 2021 | 8,690億 |
| 1996 | 4,688億 | 2009 | 7,286億 | 2022 | 9,358億 |
| 1997 | 5,075億 | 2010 | 7,384億 | 2023 | 9,962億 |
| 1998 | 5,138億 | 2011 | 7,541億 | 2024 | 1.04兆 |
| 1999 | 5,335億 | 2012 | 7,756億 | 2025 | 1.08兆 |
| 2000 | 5,470億 | 2013 | 7,786億 | 2026 | 1.11兆 |
表を表示
| 1988 | 48.3% | 2001 | 47.1% | 2014 | 50.7% |
| 1989 | 49.4% | 2002 | 46.5% | 2015 | 50.2% |
| 1990 | 54.2% | 2003 | 47% | 2016 | 49% |
| 1991 | 55.3% | 2004 | 46.7% | 2017 | 48.8% |
| 1992 | 56.8% | 2005 | 47.1% | 2018 | 48.3% |
| 1993 | 57.8% | 2006 | 47.6% | 2019 | 48.4% |
| 1994 | 55.1% | 2007 | 46.6% | 2020 | 56.8% |
| 1995 | 51.4% | 2008 | 47.8% | 2021 | 56% |
| 1996 | 51.3% | 2009 | 51.1% | 2022 | 54.9% |
| 1997 | 49.3% | 2010 | 49.8% | 2023 | 53.6% |
| 1998 | 48% | 2011 | 49% | 2024 | 50.4% |
| 1999 | 47.1% | 2012 | 50.5% | 2025 | 51.1% |
| 2000 | 46.4% | 2013 | 50.9% | 2026 | 50.6% |
表を表示
| 1988 | 2,905億 | 2001 | 6,168億 | 2014 | 8,296億 |
| 1989 | 3,267億 | 2002 | 6,302億 | 2015 | 8,357億 |
| 1990 | 3,895億 | 2003 | 6,573億 | 2016 | 8,350億 |
| 1991 | 4,346億 | 2004 | 6,801億 | 2017 | 8,510億 |
| 1992 | 4,694億 | 2005 | 7,054億 | 2018 | 8,590億 |
| 1993 | 4,919億 | 2006 | 7,419億 | 2019 | 8,736億 |
| 1994 | 4,959億 | 2007 | 7,557億 | 2020 | 9,483億 |
| 1995 | 5,096億 | 2008 | 7,849億 | 2021 | 1.03兆 |
| 1996 | 5,380億 | 2009 | 8,087億 | 2022 | 1.1兆 |
| 1997 | 5,402億 | 2010 | 8,057億 | 2023 | 1.15兆 |
| 1998 | 5,479億 | 2011 | 8,125億 | 2024 | 1.11兆 |
| 1999 | 5,544億 | 2012 | 8,243億 | 2025 | 1.15兆 |
| 2000 | 5,772億 | 2013 | 8,252億 | 2026 | 1.18兆 |