表を表示
| 1980 | 597 | 1996 | 509 | 2012 | 1,072 |
| 1981 | 390 | 1997 | 475 | 2013 | 1,169 |
| 1982 | 375 | 1998 | 495 | 2014 | 1,205 |
| 1983 | 321 | 1999 | 526 | 2015 | 1,003 |
| 1984 | 332 | 2000 | 488 | 2016 | 1,010 |
| 1985 | 349 | 2001 | 492 | 2017 | 1,060 |
| 1986 | 436 | 2002 | 546 | 2018 | 1,158 |
| 1987 | 504 | 2003 | 676 | 2019 | 1,155 |
| 1988 | 513 | 2004 | 758 | 2020 | 1,199 |
| 1989 | 463 | 2005 | 780 | 2021 | 1,320 |
| 1990 | 547 | 2006 | 809 | 2022 | 1,267 |
| 1991 | 542 | 2007 | 912 | 2023 | 1,395 |
| 1992 | 585 | 2008 | 1,060 | 2024 | 1,482 |
| 1993 | 545 | 2009 | 1,023 | 2025 | 1,634 |
| 1994 | 365 | 2010 | 974 | 2026 | 1,809 |
| 1995 | 481 | 2011 | 1,059 | | |
表を表示
| 1980 | 13.4万 | 1996 | 25.8万 | 2012 | 54.7万 |
| 1981 | 11.2万 | 1997 | 27.5万 | 2013 | 57.7万 |
| 1982 | 12.6万 | 1998 | 29.2万 | 2014 | 59.5万 |
| 1983 | 13.4万 | 1999 | 32.3万 | 2015 | 59.3万 |
| 1984 | 14.5万 | 2000 | 34.6万 | 2016 | 59.9万 |
| 1985 | 15.1万 | 2001 | 36.1万 | 2017 | 61.6万 |
| 1986 | 14.4万 | 2002 | 37.9万 | 2018 | 64.3万 |
| 1987 | 14.2万 | 2003 | 39.2万 | 2019 | 67.7万 |
| 1988 | 14.1万 | 2004 | 40万 | 2020 | 68.9万 |
| 1989 | 13.6万 | 2005 | 41.1万 | 2021 | 73.1万 |
| 1990 | 13.8万 | 2006 | 42.3万 | 2022 | 78.9万 |
| 1991 | 14.1万 | 2007 | 43.7万 | 2023 | 84.6万 |
| 1992 | 14.5万 | 2008 | 47.3万 | 2024 | 89.8万 |
| 1993 | 15万 | 2009 | 48.2万 | 2025 | 94.9万 |
| 1994 | 19.9万 | 2010 | 48.2万 | 2026 | 101万 |
| 1995 | 23.8万 | 2011 | 49.9万 | | |
表を表示
| 1980 | 52.2万 | 1996 | 47.4万 | 2012 | 55.8万 |
| 1981 | 51.5万 | 1997 | 48.6万 | 2013 | 58.1万 |
| 1982 | 50.8万 | 1998 | 49万 | 2014 | 60万 |
| 1983 | 48.2万 | 1999 | 49.6万 | 2015 | 59.3万 |
| 1984 | 46.9万 | 2000 | 50.9万 | 2016 | 59.5万 |
| 1985 | 47.4万 | 2001 | 52万 | 2017 | 61万 |
| 1986 | 47.2万 | 2002 | 52.8万 | 2018 | 63.3万 |
| 1987 | 44.8万 | 2003 | 53万 | 2019 | 65.9万 |
| 1988 | 44.9万 | 2004 | 53.7万 | 2020 | 66.6万 |
| 1989 | 42.3万 | 2005 | 52.8万 | 2021 | 69.5万 |
| 1990 | 44.7万 | 2006 | 53.2万 | 2022 | 72万 |
| 1991 | 45.2万 | 2007 | 54.8万 | 2023 | 74.7万 |
| 1992 | 45.1万 | 2008 | 55.8万 | 2024 | 78.1万 |
| 1993 | 45.7万 | 2009 | 55.4万 | 2025 | 81.6万 |
| 1994 | 44.9万 | 2010 | 54.9万 | 2026 | 84.8万 |
| 1995 | 46.6万 | 2011 | 54.8万 | | |