表を表示
| 1997 | 18.4% | 2007 | 26.1% | 2017 | 27.8% |
| 1998 | 26.8% | 2008 | 26.8% | 2018 | 27.1% |
| 1999 | 28.3% | 2009 | 26.1% | 2019 | 26.9% |
| 2000 | 26.1% | 2010 | 25.9% | 2020 | 25.7% |
| 2001 | 25.8% | 2011 | 25.4% | 2021 | 27.4% |
| 2002 | 25.3% | 2012 | 24.8% | 2022 | 26.6% |
| 2003 | 24.7% | 2013 | 24% | 2023 | 27.2% |
| 2004 | 25% | 2014 | 26.3% | 2024 | 28.2% |
| 2005 | 25.4% | 2015 | 26.4% | 2025 | 28.3% |
| 2006 | 25.9% | 2016 | 27.6% | 2026 | 29% |
表を表示
| 1997 | 610億 | 2007 | 2,523億 | 2017 | 4,304億 |
| 1998 | 1,032億 | 2008 | 2,901億 | 2018 | 4,499億 |
| 1999 | 1,254億 | 2009 | 2,985億 | 2019 | 4,603億 |
| 2000 | 1,306億 | 2010 | 3,207億 | 2020 | 4,259億 |
| 2001 | 1,456億 | 2011 | 3,304億 | 2021 | 5,110億 |
| 2002 | 1,546億 | 2012 | 3,304億 | 2022 | 5,728億 |
| 2003 | 1,672億 | 2013 | 3,237億 | 2023 | 6,437億 |
| 2004 | 1,844億 | 2014 | 3,666億 | 2024 | 7,103億 |
| 2005 | 2,045億 | 2015 | 3,792億 | 2025 | 7,546億 |
| 2006 | 2,263億 | 2016 | 4,070億 | 2026 | 8,206億 |
表を表示
| 1997 | 30.3% | 2007 | 29.3% | 2017 | 29.2% |
| 1998 | 36.8% | 2008 | 31.7% | 2018 | 28.7% |
| 1999 | 37.1% | 2009 | 32.7% | 2019 | 28.7% |
| 2000 | 33.8% | 2010 | 29.4% | 2020 | 32.4% |
| 2001 | 32.7% | 2011 | 28.9% | 2021 | 31.9% |
| 2002 | 31.5% | 2012 | 28.2% | 2022 | 30.3% |
| 2003 | 29.7% | 2013 | 29.2% | 2023 | 28.5% |
| 2004 | 30.2% | 2014 | 31.7% | 2024 | 28.9% |
| 2005 | 28.9% | 2015 | 30.8% | 2025 | 30.1% |
| 2006 | 29.2% | 2016 | 29.1% | 2026 | 31% |
表を表示
| 1997 | 1,004億 | 2007 | 2,830億 | 2017 | 4,522億 |
| 1998 | 1,414億 | 2008 | 3,429億 | 2018 | 4,761億 |
| 1999 | 1,646億 | 2009 | 3,738億 | 2019 | 4,919億 |
| 2000 | 1,696億 | 2010 | 3,643億 | 2020 | 5,363億 |
| 2001 | 1,842億 | 2011 | 3,762億 | 2021 | 5,963億 |
| 2002 | 1,925億 | 2012 | 3,762億 | 2022 | 6,510億 |
| 2003 | 2,012億 | 2013 | 3,941億 | 2023 | 6,749億 |
| 2004 | 2,224億 | 2014 | 4,427億 | 2024 | 7,286億 |
| 2005 | 2,323億 | 2015 | 4,412億 | 2025 | 8,011億 |
| 2006 | 2,548億 | 2016 | 4,291億 | 2026 | 8,778億 |