表を表示
| 1997 | 19.2% | 2007 | 22.1% | 2017 | 23.2% |
| 1998 | 17% | 2008 | 21.4% | 2018 | 25% |
| 1999 | 17.1% | 2009 | 22.9% | 2019 | 25.6% |
| 2000 | 20.6% | 2010 | 22% | 2020 | 22.8% |
| 2001 | 20.3% | 2011 | 21.4% | 2021 | 17.8% |
| 2002 | 20.7% | 2012 | 18.7% | 2022 | 15.3% |
| 2003 | 18.7% | 2013 | 19.2% | 2023 | 18.1% |
| 2004 | 20.8% | 2014 | 19.2% | 2024 | 16.1% |
| 2005 | 21.8% | 2015 | 21% | 2025 | 18.5% |
| 2006 | 22.8% | 2016 | 22% | 2026 | 16% |
表を表示
| 1997 | 433億 | 2007 | 996億 | 2017 | 2,272億 |
| 1998 | 384億 | 2008 | 1,083億 | 2018 | 2,490億 |
| 1999 | 454億 | 2009 | 1,211億 | 2019 | 2,763億 |
| 2000 | 563億 | 2010 | 1,297億 | 2020 | 2,597億 |
| 2001 | 572億 | 2011 | 1,452億 | 2021 | 2,992億 |
| 2002 | 614億 | 2012 | 1,556億 | 2022 | 4,691億 |
| 2003 | 577億 | 2013 | 1,648億 | 2023 | 6,378億 |
| 2004 | 683億 | 2014 | 1,638億 | 2024 | 8,265億 |
| 2005 | 747億 | 2015 | 1,855億 | 2025 | 1.05兆 |
| 2006 | 868億 | 2016 | 2,034億 | 2026 | 1.14兆 |
表を表示
| 1997 | 20.9% | 2007 | 25.5% | 2017 | 26.3% |
| 1998 | 19.7% | 2008 | 24.1% | 2018 | 27.6% |
| 1999 | 17.6% | 2009 | 25.4% | 2019 | 28.1% |
| 2000 | 22.9% | 2010 | 23.9% | 2020 | 30.5% |
| 2001 | 24% | 2011 | 23.5% | 2021 | 24.8% |
| 2002 | 23.1% | 2012 | 21.8% | 2022 | 20.4% |
| 2003 | 23.5% | 2013 | 21.4% | 2023 | 23.7% |
| 2004 | 23.7% | 2014 | 23.1% | 2024 | 23.3% |
| 2005 | 28.4% | 2015 | 21.7% | 2025 | 23.9% |
| 2006 | 29% | 2016 | 25.2% | 2026 | 22.4% |
表を表示
| 1997 | 472億 | 2007 | 1,146億 | 2017 | 2,579億 |
| 1998 | 444億 | 2008 | 1,224億 | 2018 | 2,740億 |
| 1999 | 467億 | 2009 | 1,343億 | 2019 | 3,034億 |
| 2000 | 625億 | 2010 | 1,408億 | 2020 | 3,484億 |
| 2001 | 677億 | 2011 | 1,597億 | 2021 | 4,155億 |
| 2002 | 685億 | 2012 | 1,814億 | 2022 | 6,256億 |
| 2003 | 725億 | 2013 | 1,833億 | 2023 | 8,360億 |
| 2004 | 777億 | 2014 | 1,968億 | 2024 | 1.2兆 |
| 2005 | 971億 | 2015 | 1,921億 | 2025 | 1.35兆 |
| 2006 | 1,102億 | 2016 | 2,331億 | 2026 | 1.59兆 |