表を表示
| 1980 | 1,246 | 1996 | 3,633 | 2012 | 7,434 |
| 1981 | 1,276 | 1997 | 3,861 | 2013 | 7,760 |
| 1982 | 1,347 | 1998 | 4,371 | 2014 | 8,334 |
| 1983 | 1,373 | 1999 | 4,706 | 2015 | 9,056 |
| 1984 | 1,478 | 2000 | 5,057 | 2016 | 9,572 |
| 1985 | 1,678 | 2001 | 5,046 | 2017 | 1.01万 |
| 1986 | 1,872 | 2002 | 5,192 | 2018 | 1.04万 |
| 1987 | 2,163 | 2003 | 5,641 | 2019 | 1.08万 |
| 1988 | 2,409 | 2004 | 5,722 | 2020 | 9,223 |
| 1989 | 2,758 | 2005 | 6,658 | 2021 | 9,864 |
| 1990 | 2,887 | 2006 | 6,673 | 2022 | 1.07万 |
| 1991 | 3,118 | 2007 | 7,227 | 2023 | 1.16万 |
| 1992 | 3,192 | 2008 | 7,844 | 2024 | 1.17万 |
| 1993 | 3,154 | 2009 | 7,333 | 2025 | 1.22万 |
| 1994 | 3,273 | 2010 | 7,340 | 2026 | 1.27万 |
| 1995 | 3,412 | 2011 | 7,300 | | |
表を表示
| 1980 | 3,363 | 1996 | 9,808 | 2012 | 2.01万 |
| 1981 | 3,446 | 1997 | 1.04万 | 2013 | 2.1万 |
| 1982 | 3,637 | 1998 | 1.18万 | 2014 | 2.25万 |
| 1983 | 3,706 | 1999 | 1.27万 | 2015 | 2.45万 |
| 1984 | 3,990 | 2000 | 1.37万 | 2016 | 2.58万 |
| 1985 | 4,531 | 2001 | 1.36万 | 2017 | 2.73万 |
| 1986 | 5,056 | 2002 | 1.4万 | 2018 | 2.81万 |
| 1987 | 5,839 | 2003 | 1.52万 | 2019 | 2.91万 |
| 1988 | 6,504 | 2004 | 1.54万 | 2020 | 2.49万 |
| 1989 | 7,446 | 2005 | 1.8万 | 2021 | 2.66万 |
| 1990 | 7,795 | 2006 | 1.8万 | 2022 | 2.89万 |
| 1991 | 8,418 | 2007 | 1.95万 | 2023 | 3.14万 |
| 1992 | 8,619 | 2008 | 2.12万 | 2024 | 3.16万 |
| 1993 | 8,515 | 2009 | 1.98万 | 2025 | 3.3万 |
| 1994 | 8,836 | 2010 | 1.98万 | 2026 | 3.43万 |
| 1995 | 9,212 | 2011 | 1.97万 | | |
表を表示
| 1980 | 7,992 | 1996 | 1.18万 | 2012 | 1.74万 |
| 1981 | 7,960 | 1997 | 1.23万 | 2013 | 1.76万 |
| 1982 | 8,063 | 1998 | 1.37万 | 2014 | 1.88万 |
| 1983 | 8,078 | 1999 | 1.46万 | 2015 | 1.99万 |
| 1984 | 8,189 | 2000 | 1.53万 | 2016 | 2.05万 |
| 1985 | 8,551 | 2001 | 1.5万 | 2017 | 2.13万 |
| 1986 | 9,159 | 2002 | 1.53万 | 2018 | 2.21万 |
| 1987 | 1.01万 | 2003 | 1.67万 | 2019 | 2.21万 |
| 1988 | 1.05万 | 2004 | 1.66万 | 2020 | 1.9万 |
| 1989 | 1.1万 | 2005 | 1.88万 | 2021 | 1.98万 |
| 1990 | 1.16万 | 2006 | 1.8万 | 2022 | 2.11万 |
| 1991 | 1.17万 | 2007 | 1.91万 | 2023 | 2.19万 |
| 1992 | 1.15万 | 2008 | 1.92万 | 2024 | 2.23万 |
| 1993 | 1.12万 | 2009 | 1.79万 | 2025 | 2.32万 |
| 1994 | 1.13万 | 2010 | 1.79万 | 2026 | 2.38万 |
| 1995 | 1.14万 | 2011 | 1.77万 | | |