表を表示
| 1983 | 28% | 1998 | 31% | 2013 | 31.5% |
| 1984 | 27.9% | 1999 | 31.2% | 2014 | 31.3% |
| 1985 | 27.7% | 2000 | 32.2% | 2015 | 32.5% |
| 1986 | 28.6% | 2001 | 31.4% | 2016 | 32.2% |
| 1987 | 28.5% | 2002 | 31.9% | 2017 | 33% |
| 1988 | 28.8% | 2003 | 31.5% | 2018 | 32.3% |
| 1989 | 28.1% | 2004 | 31.3% | 2019 | 32.6% |
| 1990 | 27.2% | 2005 | 31.3% | 2020 | 33.3% |
| 1991 | 27.2% | 2006 | 30.9% | 2021 | 33.1% |
| 1992 | 27.9% | 2007 | 30.5% | 2022 | 31.6% |
| 1993 | 28.9% | 2008 | 31.5% | 2023 | 31.1% |
| 1994 | 29.4% | 2009 | 31.7% | 2024 | 31.8% |
| 1995 | 30.1% | 2010 | 31.2% | 2025 | 31.7% |
| 1996 | 30.5% | 2011 | 31.6% | 2026 | 31.7% |
| 1997 | 30.2% | 2012 | 31.4% | | |
表を表示
| 1983 | 683億 | 1998 | 1,379億 | 2013 | 2,103億 |
| 1984 | 727億 | 1999 | 1,416億 | 2014 | 2,126億 |
| 1985 | 766億 | 2000 | 1,533億 | 2015 | 2,205億 |
| 1986 | 832億 | 2001 | 1,539億 | 2016 | 2,215億 |
| 1987 | 858億 | 2002 | 1,560億 | 2017 | 2,299億 |
| 1988 | 921億 | 2003 | 1,554億 | 2018 | 2,345億 |
| 1989 | 970億 | 2004 | 1,588億 | 2019 | 2,389億 |
| 1990 | 1,019億 | 2005 | 1,653億 | 2020 | 2,365億 |
| 1991 | 1,065億 | 2006 | 1,738億 | 2021 | 2,541億 |
| 1992 | 1,114億 | 2007 | 1,828億 | 2022 | 2,591億 |
| 1993 | 1,178億 | 2008 | 1,959億 | 2023 | 2,592億 |
| 1994 | 1,232億 | 2009 | 1,944億 | 2024 | 2,719億 |
| 1995 | 1,277億 | 2010 | 1,984億 | 2025 | 2,748億 |
| 1996 | 1,302億 | 2011 | 2,042億 | 2026 | 2,797億 |
| 1997 | 1,309億 | 2012 | 2,053億 | | |
表を表示
| 1983 | 28.5% | 1998 | 32.3% | 2013 | 32% |
| 1984 | 28.1% | 1999 | 32.8% | 2014 | 31.5% |
| 1985 | 27.7% | 2000 | 31.9% | 2015 | 31.9% |
| 1986 | 27.6% | 2001 | 31.2% | 2016 | 31.9% |
| 1987 | 27.4% | 2002 | 33.6% | 2017 | 31.9% |
| 1988 | 27.9% | 2003 | 32.8% | 2018 | 31.1% |
| 1989 | 27.3% | 2004 | 32.6% | 2019 | 31.3% |
| 1990 | 27.2% | 2005 | 31.9% | 2020 | 36.3% |
| 1991 | 29% | 2006 | 30.1% | 2021 | 33.4% |
| 1992 | 30.8% | 2007 | 29% | 2022 | 30.5% |
| 1993 | 31.9% | 2008 | 29.6% | 2023 | 30.9% |
| 1994 | 32% | 2009 | 31.2% | 2024 | 31.3% |
| 1995 | 32% | 2010 | 30.9% | 2025 | 31.2% |
| 1996 | 32.5% | 2011 | 31% | 2026 | 31.5% |
| 1997 | 32.5% | 2012 | 31.1% | | |
表を表示
| 1983 | 697億 | 1998 | 1,437億 | 2013 | 2,131億 |
| 1984 | 733億 | 1999 | 1,486億 | 2014 | 2,142億 |
| 1985 | 766億 | 2000 | 1,520億 | 2015 | 2,169億 |
| 1986 | 801億 | 2001 | 1,529億 | 2016 | 2,198億 |
| 1987 | 826億 | 2002 | 1,645億 | 2017 | 2,222億 |
| 1988 | 892億 | 2003 | 1,621億 | 2018 | 2,253億 |
| 1989 | 944億 | 2004 | 1,658億 | 2019 | 2,293億 |
| 1990 | 1,021億 | 2005 | 1,686億 | 2020 | 2,575億 |
| 1991 | 1,137億 | 2006 | 1,691億 | 2021 | 2,563億 |
| 1992 | 1,231億 | 2007 | 1,735億 | 2022 | 2,496億 |
| 1993 | 1,304億 | 2008 | 1,840億 | 2023 | 2,582億 |
| 1994 | 1,339億 | 2009 | 1,914億 | 2024 | 2,674億 |
| 1995 | 1,354億 | 2010 | 1,962億 | 2025 | 2,709億 |
| 1996 | 1,386億 | 2011 | 1,999億 | 2026 | 2,778億 |
| 1997 | 1,409億 | 2012 | 2,038億 | | |