表を表示
| 1980 | 311 | 1996 | 471 | 2012 | 1,058 |
| 1981 | 322 | 1997 | 479 | 2013 | 1,176 |
| 1982 | 294 | 1998 | 488 | 2014 | 1,340 |
| 1983 | 277 | 1999 | 491 | 2015 | 1,496 |
| 1984 | 303 | 2000 | 483 | 2016 | 1,679 |
| 1985 | 318 | 2001 | 481 | 2017 | 1,840 |
| 1986 | 318 | 2002 | 491 | 2018 | 1,992 |
| 1987 | 339 | 2003 | 532 | 2019 | 2,154 |
| 1988 | 356 | 2004 | 563 | 2020 | 2,270 |
| 1989 | 378 | 2005 | 572 | 2021 | 2,498 |
| 1990 | 398 | 2006 | 610 | 2022 | 2,731 |
| 1991 | 402 | 2007 | 669 | 2023 | 2,652 |
| 1992 | 401 | 2008 | 761 | 2024 | 2,619 |
| 1993 | 396 | 2009 | 841 | 2025 | 2,636 |
| 1994 | 412 | 2010 | 936 | 2026 | 2,911 |
| 1995 | 450 | 2011 | 1,032 | | |
表を表示
| 1980 | 4,823 | 1996 | 1.93万 | 2012 | 8.37万 |
| 1981 | 5,389 | 1997 | 2.05万 | 2013 | 9.4万 |
| 1982 | 5,896 | 1998 | 2.22万 | 2014 | 10.4万 |
| 1983 | 6,484 | 1999 | 2.36万 | 2015 | 11.6万 |
| 1984 | 7,578 | 2000 | 2.52万 | 2016 | 13.1万 |
| 1985 | 8,469 | 2001 | 2.68万 | 2017 | 14.6万 |
| 1986 | 9,288 | 2002 | 2.84万 | 2018 | 16.4万 |
| 1987 | 1.04万 | 2003 | 3.1万 | 2019 | 18.1万 |
| 1988 | 1.11万 | 2004 | 3.35万 | 2020 | 19.3万 |
| 1989 | 1.21万 | 2005 | 3.68万 | 2021 | 21.2万 |
| 1990 | 1.33万 | 2006 | 4.1万 | 2022 | 23.6万 |
| 1991 | 1.43万 | 2007 | 4.62万 | 2023 | 26.4万 |
| 1992 | 1.51万 | 2008 | 5.22万 | 2024 | 29.1万 |
| 1993 | 1.55万 | 2009 | 5.79万 | 2025 | 31.7万 |
| 1994 | 1.64万 | 2010 | 6.47万 | 2026 | 35.8万 |
| 1995 | 1.81万 | 2011 | 7.35万 | | |
表を表示
| 1980 | 4.6万 | 1996 | 5.82万 | 2012 | 10.7万 |
| 1981 | 4.65万 | 1997 | 5.95万 | 2013 | 11.2万 |
| 1982 | 4.64万 | 1998 | 6.13万 | 2014 | 11.8万 |
| 1983 | 4.7万 | 1999 | 6.29万 | 2015 | 12.4万 |
| 1984 | 4.82万 | 2000 | 6.5万 | 2016 | 13.1万 |
| 1985 | 4.84万 | 2001 | 6.7万 | 2017 | 13.9万 |
| 1986 | 4.92万 | 2002 | 6.83万 | 2018 | 14.7万 |
| 1987 | 4.97万 | 2003 | 7.03万 | 2019 | 15.7万 |
| 1988 | 4.95万 | 2004 | 7.28万 | 2020 | 16.1万 |
| 1989 | 4.95万 | 2005 | 7.64万 | 2021 | 17万 |
| 1990 | 5.12万 | 2006 | 8.04万 | 2022 | 18万 |
| 1991 | 5.17万 | 2007 | 8.5万 | 2023 | 18.9万 |
| 1992 | 5.31万 | 2008 | 8.91万 | 2024 | 19.5万 |
| 1993 | 5.43万 | 2009 | 9.26万 | 2025 | 19.9万 |
| 1994 | 5.53万 | 2010 | 9.67万 | 2026 | 20.7万 |
| 1995 | 5.68万 | 2011 | 10.2万 | | |