表を表示
| 1980 | 1,230 | 1996 | 5,205 | 2012 | 1.25万 |
| 1981 | 1,383 | 1997 | 5,321 | 2013 | 1.24万 |
| 1982 | 1,446 | 1998 | 5,124 | 2014 | 1.22万 |
| 1983 | 1,135 | 1999 | 3,501 | 2015 | 8,893 |
| 1984 | 1,106 | 2000 | 3,752 | 2016 | 8,813 |
| 1985 | 1,720 | 2001 | 3,164 | 2017 | 1.01万 |
| 1986 | 1,955 | 2002 | 2,844 | 2018 | 9,282 |
| 1987 | 2,087 | 2003 | 3,078 | 2019 | 9,011 |
| 1988 | 2,289 | 2004 | 3,648 | 2020 | 7,057 |
| 1989 | 3,088 | 2005 | 4,806 | 2021 | 7,952 |
| 1990 | 3,106 | 2006 | 5,906 | 2022 | 9,256 |
| 1991 | 2,678 | 2007 | 7,374 | 2023 | 1.04万 |
| 1992 | 2,524 | 2008 | 8,863 | 2024 | 1.03万 |
| 1993 | 2,787 | 2009 | 8,641 | 2025 | 1.07万 |
| 1994 | 3,495 | 2010 | 1.13万 | 2026 | 1.23万 |
| 1995 | 4,852 | 2011 | 1.33万 | | |
表を表示
| 1984 | 0 | 1999 | 6,351 | 2014 | 2.88万 |
| 1985 | 0 | 2000 | 6,864 | 2015 | 2.96万 |
| 1986 | 0 | 2001 | 7,433 | 2016 | 3.08万 |
| 1987 | 0 | 2002 | 8,307 | 2017 | 3.21万 |
| 1988 | 0 | 2003 | 9,472 | 2018 | 3.39万 |
| 1989 | 0 | 2004 | 1.07万 | 2019 | 3.55万 |
| 1990 | 0 | 2005 | 1.17万 | 2020 | 3.64万 |
| 1991 | 0 | 2006 | 1.28万 | 2021 | 4.29万 |
| 1992 | 4 | 2007 | 1.44万 | 2022 | 4.78万 |
| 1993 | 90 | 2008 | 1.63万 | 2023 | 5.17万 |
| 1994 | 2,233 | 2009 | 1.73万 | 2024 | 5.54万 |
| 1995 | 4,444 | 2010 | 2万 | 2025 | 5.97万 |
| 1996 | 5,227 | 2011 | 2.23万 | 2026 | 6.38万 |
| 1997 | 5,732 | 2012 | 2.44万 | | |
| 1998 | 5,942 | 2013 | 2.68万 | | |
表を表示
| 1980 | 4,411 | 1996 | 4,412 | 2012 | 6,042 |
| 1981 | 4,124 | 1997 | 4,492 | 2013 | 6,175 |
| 1982 | 4,059 | 1998 | 4,438 | 2014 | 6,157 |
| 1983 | 3,838 | 1999 | 4,392 | 2015 | 5,892 |
| 1984 | 3,957 | 2000 | 4,494 | 2016 | 5,658 |
| 1985 | 4,183 | 2001 | 4,497 | 2017 | 5,696 |
| 1986 | 4,409 | 2002 | 4,577 | 2018 | 5,760 |
| 1987 | 4,481 | 2003 | 4,574 | 2019 | 5,792 |
| 1988 | 4,410 | 2004 | 4,783 | 2020 | 5,568 |
| 1989 | 4,472 | 2005 | 4,881 | 2021 | 5,808 |
| 1990 | 4,160 | 2006 | 5,020 | 2022 | 5,961 |
| 1991 | 4,133 | 2007 | 5,271 | 2023 | 6,130 |
| 1992 | 4,047 | 2008 | 5,485 | 2024 | 6,313 |
| 1993 | 4,168 | 2009 | 5,426 | 2025 | 6,434 |
| 1994 | 4,322 | 2010 | 5,787 | 2026 | 6,535 |
| 1995 | 4,444 | 2011 | 5,974 | | |