表を表示
| 1986 | 42.2% | 2000 | 39.5% | 2014 | 44.3% |
| 1987 | 37.3% | 2001 | 39.4% | 2015 | 43.8% |
| 1988 | 37.9% | 2002 | 40.5% | 2016 | 42.9% |
| 1989 | 38% | 2003 | 39.7% | 2017 | 42.5% |
| 1990 | 35.3% | 2004 | 40.1% | 2018 | 42.9% |
| 1991 | 38% | 2005 | 40.7% | 2019 | 42.6% |
| 1992 | 43% | 2006 | 41.1% | 2020 | 43.4% |
| 1993 | 38.4% | 2007 | 41.6% | 2021 | 44.5% |
| 1994 | 35.4% | 2008 | 41.7% | 2022 | 43.6% |
| 1995 | 37.5% | 2009 | 40.4% | 2023 | 43.2% |
| 1996 | 38.4% | 2010 | 40.5% | 2024 | 43% |
| 1997 | 38.8% | 2011 | 42.3% | 2025 | 44.1% |
| 1998 | 38.3% | 2012 | 42.6% | 2026 | 43.8% |
| 1999 | 39.6% | 2013 | 44.7% | | |
表を表示
| 1986 | 119億 | 2000 | 507億 | 2014 | 768億 |
| 1987 | 124億 | 2001 | 535億 | 2015 | 787億 |
| 1988 | 150億 | 2002 | 577億 | 2016 | 800億 |
| 1989 | 178億 | 2003 | 581億 | 2017 | 831億 |
| 1990 | 199億 | 2004 | 610億 | 2018 | 879億 |
| 1991 | 246億 | 2005 | 645億 | 2019 | 914億 |
| 1992 | 313億 | 2006 | 683億 | 2020 | 872億 |
| 1993 | 292億 | 2007 | 731億 | 2021 | 964億 |
| 1994 | 292億 | 2008 | 746億 | 2022 | 1,063億 |
| 1995 | 333億 | 2009 | 708億 | 2023 | 1,167億 |
| 1996 | 362億 | 2010 | 728億 | 2024 | 1,246億 |
| 1997 | 397億 | 2011 | 746億 | 2025 | 1,351億 |
| 1998 | 427億 | 2012 | 719億 | 2026 | 1,413億 |
| 1999 | 473億 | 2013 | 764億 | | |
表を表示
| 1986 | 52.5% | 2000 | 42.8% | 2014 | 51.7% |
| 1987 | 45.7% | 2001 | 44.1% | 2015 | 48.2% |
| 1988 | 42.2% | 2002 | 44.2% | 2016 | 44.9% |
| 1989 | 41.5% | 2003 | 45.3% | 2017 | 45.5% |
| 1990 | 42.2% | 2004 | 46% | 2018 | 43.3% |
| 1991 | 45.9% | 2005 | 46.7% | 2019 | 42.5% |
| 1992 | 48.2% | 2006 | 45.2% | 2020 | 49.1% |
| 1993 | 46.5% | 2007 | 44.6% | 2021 | 47.3% |
| 1994 | 42.8% | 2008 | 45.5% | 2022 | 43.9% |
| 1995 | 42.6% | 2009 | 50.3% | 2023 | 41.9% |
| 1996 | 43% | 2010 | 51.9% | 2024 | 42.5% |
| 1997 | 42.4% | 2011 | 50% | 2025 | 43.7% |
| 1998 | 42.6% | 2012 | 48.8% | 2026 | 43.9% |
| 1999 | 42.5% | 2013 | 50% | | |
表を表示
| 1986 | 148億 | 2000 | 550億 | 2014 | 895億 |
| 1987 | 152億 | 2001 | 599億 | 2015 | 865億 |
| 1988 | 168億 | 2002 | 630億 | 2016 | 836億 |
| 1989 | 195億 | 2003 | 662億 | 2017 | 889億 |
| 1990 | 238億 | 2004 | 700億 | 2018 | 887億 |
| 1991 | 297億 | 2005 | 741億 | 2019 | 911億 |
| 1992 | 350億 | 2006 | 751億 | 2020 | 988億 |
| 1993 | 353億 | 2007 | 782億 | 2021 | 1,025億 |
| 1994 | 352億 | 2008 | 815億 | 2022 | 1,070億 |
| 1995 | 379億 | 2009 | 882億 | 2023 | 1,133億 |
| 1996 | 406億 | 2010 | 933億 | 2024 | 1,232億 |
| 1997 | 434億 | 2011 | 882億 | 2025 | 1,342億 |
| 1998 | 475億 | 2012 | 823億 | 2026 | 1,417億 |
| 1999 | 508億 | 2013 | 853億 | | |