表を表示
| 1980 | 903 | 1996 | 3,341 | 2012 | 6,686 |
| 1981 | 1,110 | 1997 | 3,500 | 2013 | 6,988 |
| 1982 | 1,227 | 1998 | 3,756 | 2014 | 7,028 |
| 1983 | 1,309 | 1999 | 3,923 | 2015 | 7,155 |
| 1984 | 1,435 | 2000 | 3,973 | 2016 | 7,390 |
| 1985 | 1,537 | 2001 | 4,285 | 2017 | 7,643 |
| 1986 | 1,686 | 2002 | 4,518 | 2018 | 8,002 |
| 1987 | 1,828 | 2003 | 4,710 | 2019 | 8,232 |
| 1988 | 2,078 | 2004 | 5,082 | 2020 | 7,803 |
| 1989 | 2,211 | 2005 | 5,354 | 2021 | 8,018 |
| 1990 | 2,456 | 2006 | 5,934 | 2022 | 8,748 |
| 1991 | 2,584 | 2007 | 6,573 | 2023 | 9,433 |
| 1992 | 2,815 | 2008 | 6,740 | 2024 | 1.01万 |
| 1993 | 2,896 | 2009 | 6,564 | 2025 | 1.06万 |
| 1994 | 2,924 | 2010 | 6,613 | 2026 | 1.11万 |
| 1995 | 3,188 | 2011 | 6,545 | | |
表を表示
| 1980 | 2,439 | 1996 | 9,019 | 2012 | 1.81万 |
| 1981 | 2,998 | 1997 | 9,451 | 2013 | 1.89万 |
| 1982 | 3,314 | 1998 | 1.01万 | 2014 | 1.9万 |
| 1983 | 3,535 | 1999 | 1.06万 | 2015 | 1.93万 |
| 1984 | 3,875 | 2000 | 1.07万 | 2016 | 2万 |
| 1985 | 4,151 | 2001 | 1.16万 | 2017 | 2.06万 |
| 1986 | 4,552 | 2002 | 1.22万 | 2018 | 2.16万 |
| 1987 | 4,937 | 2003 | 1.27万 | 2019 | 2.22万 |
| 1988 | 5,610 | 2004 | 1.37万 | 2020 | 2.11万 |
| 1989 | 5,971 | 2005 | 1.45万 | 2021 | 2.16万 |
| 1990 | 6,632 | 2006 | 1.6万 | 2022 | 2.36万 |
| 1991 | 6,977 | 2007 | 1.77万 | 2023 | 2.55万 |
| 1992 | 7,601 | 2008 | 1.82万 | 2024 | 2.74万 |
| 1993 | 7,819 | 2009 | 1.77万 | 2025 | 2.85万 |
| 1994 | 7,895 | 2010 | 1.79万 | 2026 | 3万 |
| 1995 | 8,609 | 2011 | 1.77万 | | |
表を表示
| 1980 | 7,562 | 1996 | 1.36万 | 2012 | 1.88万 |
| 1981 | 7,843 | 1997 | 1.4万 | 2013 | 1.92万 |
| 1982 | 8,128 | 1998 | 1.46万 | 2014 | 1.94万 |
| 1983 | 8,241 | 1999 | 1.49万 | 2015 | 1.99万 |
| 1984 | 8,720 | 2000 | 1.52万 | 2016 | 2.07万 |
| 1985 | 9,194 | 2001 | 1.54万 | 2017 | 2.1万 |
| 1986 | 9,642 | 2002 | 1.61万 | 2018 | 2.16万 |
| 1987 | 9,620 | 2003 | 1.71万 | 2019 | 2.17万 |
| 1988 | 1.09万 | 2004 | 1.77万 | 2020 | 2.07万 |
| 1989 | 1.1万 | 2005 | 1.81万 | 2021 | 2.11万 |
| 1990 | 1.14万 | 2006 | 1.93万 | 2022 | 2.21万 |
| 1991 | 1.14万 | 2007 | 1.98万 | 2023 | 2.31万 |
| 1992 | 1.21万 | 2008 | 1.99万 | 2024 | 2.41万 |
| 1993 | 1.26万 | 2009 | 1.96万 | 2025 | 2.49万 |
| 1994 | 1.25万 | 2010 | 1.88万 | 2026 | 2.56万 |
| 1995 | 1.34万 | 2011 | 1.86万 | | |