表を表示
| 1988 | 57.7% | 2001 | 67.2% | 2014 | 85.2% |
| 1989 | 56.6% | 2002 | 67.4% | 2015 | 85.6% |
| 1990 | 56.2% | 2003 | 66.4% | 2016 | 83.4% |
| 1991 | 56.4% | 2004 | 65.9% | 2017 | 79.1% |
| 1992 | 56.3% | 2005 | 69.4% | 2018 | 74.6% |
| 1993 | 61% | 2006 | 68.2% | 2019 | 71% |
| 1994 | 64.1% | 2007 | 65.8% | 2020 | 83.2% |
| 1995 | 68.2% | 2008 | 69.5% | 2021 | 82.4% |
| 1996 | 68.2% | 2009 | 80.8% | 2022 | 78.1% |
| 1997 | 63.4% | 2010 | 83.7% | 2023 | 77.8% |
| 1998 | 69.2% | 2011 | 83.4% | 2024 | 79.2% |
| 1999 | 61.3% | 2012 | 82.9% | 2025 | 80.5% |
| 2000 | 66.1% | 2013 | 82.4% | 2026 | 82% |
表を表示
| 1988 | 686億 | 2001 | 1,475億 | 2014 | 2,813億 |
| 1989 | 721億 | 2002 | 1,518億 | 2015 | 2,929億 |
| 1990 | 769億 | 2003 | 1,531億 | 2016 | 2,967億 |
| 1991 | 828億 | 2004 | 1,585億 | 2017 | 2,904億 |
| 1992 | 873億 | 2005 | 1,752億 | 2018 | 2,858億 |
| 1993 | 976億 | 2006 | 1,813億 | 2019 | 2,810億 |
| 1994 | 1,076億 | 2007 | 1,857億 | 2020 | 3,164億 |
| 1995 | 1,198億 | 2008 | 2,029億 | 2021 | 3,347億 |
| 1996 | 1,238億 | 2009 | 2,312億 | 2022 | 3,512億 |
| 1997 | 1,190億 | 2010 | 2,460億 | 2023 | 3,715億 |
| 1998 | 1,351億 | 2011 | 2,569億 | 2024 | 3,912億 |
| 1999 | 1,246億 | 2012 | 2,626億 | 2025 | 4,133億 |
| 2000 | 1,404億 | 2013 | 2,648億 | 2026 | 4,340億 |
表を表示
| 1999 | 40.5% | 2009 | 57.7% | 2019 | 48.2% |
| 2000 | 44% | 2010 | 61.6% | 2020 | 59.4% |
| 2001 | 43% | 2011 | 61.3% | 2021 | 60.2% |
| 2002 | 44.5% | 2012 | 61.6% | 2022 | 58% |
| 2003 | 44.1% | 2013 | 61.7% | 2023 | 58.9% |
| 2004 | 47.1% | 2014 | 60.3% | 2024 | 60.9% |
| 2005 | 51% | 2015 | 59.2% | 2025 | 62.9% |
| 2006 | 50.7% | 2016 | 57.4% | 2026 | 65% |
| 2007 | 49.7% | 2017 | 56.2% | | |
| 2008 | 50.2% | 2018 | 51% | | |
表を表示
| 1999 | 823億 | 2009 | 1,652億 | 2019 | 1,907億 |
| 2000 | 934億 | 2010 | 1,811億 | 2020 | 2,260億 |
| 2001 | 944億 | 2011 | 1,889億 | 2021 | 2,444億 |
| 2002 | 1,002億 | 2012 | 1,950億 | 2022 | 2,608億 |
| 2003 | 1,016億 | 2013 | 1,980億 | 2023 | 2,812億 |
| 2004 | 1,133億 | 2014 | 1,992億 | 2024 | 3,009億 |
| 2005 | 1,287億 | 2015 | 2,026億 | 2025 | 3,230億 |
| 2006 | 1,348億 | 2016 | 2,042億 | 2026 | 3,437億 |
| 2007 | 1,403億 | 2017 | 2,062億 | | |
| 2008 | 1,464億 | 2018 | 1,955億 | | |