表を表示
| 1987 | 17.3% | 2001 | 13.3% | 2015 | 12.2% |
| 1988 | 17.7% | 2002 | 15.5% | 2016 | 12.3% |
| 1989 | 16.4% | 2003 | 9.2% | 2017 | 12.1% |
| 1990 | 15.4% | 2004 | 11.3% | 2018 | 15.9% |
| 1991 | 14.6% | 2005 | 11.8% | 2019 | 17.1% |
| 1992 | 15.8% | 2006 | 22% | 2020 | 20.7% |
| 1993 | 15% | 2007 | 13.9% | 2021 | 13.3% |
| 1994 | 14.8% | 2008 | 14.8% | 2022 | 12% |
| 1995 | 15.7% | 2009 | 15.5% | 2023 | 14% |
| 1996 | 10.7% | 2010 | 15.9% | 2024 | 14.3% |
| 1997 | 12.9% | 2011 | 12% | 2025 | 15.6% |
| 1998 | 18.1% | 2012 | 14% | 2026 | 14.3% |
| 1999 | 17.7% | 2013 | 11.1% | | |
| 2000 | 15.2% | 2014 | 13.6% | | |
表を表示
| 1987 | 626億 | 2001 | 875億 | 2015 | 1,341億 |
| 1988 | 673億 | 2002 | 1,060億 | 2016 | 1,449億 |
| 1989 | 659億 | 2003 | 638億 | 2017 | 1,540億 |
| 1990 | 624億 | 2004 | 785億 | 2018 | 2,105億 |
| 1991 | 580億 | 2005 | 880億 | 2019 | 2,448億 |
| 1992 | 596億 | 2006 | 1,765億 | 2020 | 2,983億 |
| 1993 | 548億 | 2007 | 1,170億 | 2021 | 1,996億 |
| 1994 | 700億 | 2008 | 1,347億 | 2022 | 1,913億 |
| 1995 | 881億 | 2009 | 1,503億 | 2023 | 2,319億 |
| 1996 | 550億 | 2010 | 1,687億 | 2024 | 2,490億 |
| 1997 | 730億 | 2011 | 1,380億 | 2025 | 2,888億 |
| 1998 | 1,095億 | 2012 | 1,790億 | 2026 | 2,781億 |
| 1999 | 1,130億 | 2013 | 927億 | | |
| 2000 | 934億 | 2014 | 1,380億 | | |
表を表示
| 1987 | 21.9% | 2001 | 14.1% | 2015 | 12.7% |
| 1988 | 21.4% | 2002 | 16.7% | 2016 | 11.1% |
| 1989 | 19.6% | 2003 | 12.3% | 2017 | 13.1% |
| 1990 | 22% | 2004 | 13.1% | 2018 | 16.8% |
| 1991 | 22.6% | 2005 | 16.2% | 2019 | 15.8% |
| 1992 | 23.1% | 2006 | 13.4% | 2020 | 24% |
| 1993 | 20.6% | 2007 | 12.9% | 2021 | 19% |
| 1994 | 22.4% | 2008 | 16% | 2022 | 17.1% |
| 1995 | 20.6% | 2009 | 16% | 2023 | 17.5% |
| 1996 | 11.7% | 2010 | 17.3% | 2024 | 19.4% |
| 1997 | 14.5% | 2011 | 14.2% | 2025 | 21.1% |
| 1998 | 18.1% | 2012 | 14.7% | 2026 | 19.3% |
| 1999 | 18.2% | 2013 | 13.4% | | |
| 2000 | 17.2% | 2014 | 16.7% | | |
表を表示
| 1987 | 795億 | 2001 | 932億 | 2015 | 1,400億 |
| 1988 | 815億 | 2002 | 1,141億 | 2016 | 1,309億 |
| 1989 | 790億 | 2003 | 849億 | 2017 | 1,667億 |
| 1990 | 891億 | 2004 | 905億 | 2018 | 2,228億 |
| 1991 | 897億 | 2005 | 1,206億 | 2019 | 2,257億 |
| 1992 | 873億 | 2006 | 1,075億 | 2020 | 3,448億 |
| 1993 | 755億 | 2007 | 1,083億 | 2021 | 2,854億 |
| 1994 | 1,059億 | 2008 | 1,459億 | 2022 | 2,732億 |
| 1995 | 1,152億 | 2009 | 1,555億 | 2023 | 2,883億 |
| 1996 | 605億 | 2010 | 1,830億 | 2024 | 3,365億 |
| 1997 | 819億 | 2011 | 1,627億 | 2025 | 3,906億 |
| 1998 | 1,095億 | 2012 | 1,889億 | 2026 | 3,749億 |
| 1999 | 1,162億 | 2013 | 1,119億 | | |
| 2000 | 1,057億 | 2014 | 1,686億 | | |