表を表示
| 1980 | 1,524 | 1996 | 3,830 | 2012 | 5,737 |
| 1981 | 1,584 | 1997 | 3,795 | 2013 | 5,957 |
| 1982 | 1,554 | 1998 | 3,895 | 2014 | 6,124 |
| 1983 | 1,593 | 1999 | 4,113 | 2015 | 6,148 |
| 1984 | 1,731 | 2000 | 4,557 | 2016 | 6,151 |
| 1985 | 1,670 | 2001 | 4,577 | 2017 | 6,102 |
| 1986 | 1,768 | 2002 | 4,736 | 2018 | 6,035 |
| 1987 | 2,015 | 2003 | 4,857 | 2019 | 6,167 |
| 1988 | 2,335 | 2004 | 5,066 | 2020 | 5,209 |
| 1989 | 2,623 | 2005 | 5,198 | 2021 | 6,081 |
| 1990 | 2,893 | 2006 | 5,464 | 2022 | 7,162 |
| 1991 | 3,076 | 2007 | 5,710 | 2023 | 7,552 |
| 1992 | 3,496 | 2008 | 5,666 | 2024 | 7,796 |
| 1993 | 3,670 | 2009 | 5,357 | 2025 | 7,968 |
| 1994 | 3,658 | 2010 | 5,424 | 2026 | 8,134 |
| 1995 | 3,781 | 2011 | 5,578 | | |
表を表示
| 1980 | 3,047 | 1996 | 7,661 | 2012 | 1.15万 |
| 1981 | 3,168 | 1997 | 7,591 | 2013 | 1.19万 |
| 1982 | 3,107 | 1998 | 7,791 | 2014 | 1.22万 |
| 1983 | 3,187 | 1999 | 8,226 | 2015 | 1.23万 |
| 1984 | 3,462 | 2000 | 9,114 | 2016 | 1.23万 |
| 1985 | 3,341 | 2001 | 9,153 | 2017 | 1.22万 |
| 1986 | 3,537 | 2002 | 9,473 | 2018 | 1.21万 |
| 1987 | 4,031 | 2003 | 9,713 | 2019 | 1.23万 |
| 1988 | 4,669 | 2004 | 1.01万 | 2020 | 1.04万 |
| 1989 | 5,247 | 2005 | 1.04万 | 2021 | 1.22万 |
| 1990 | 5,786 | 2006 | 1.09万 | 2022 | 1.43万 |
| 1991 | 6,151 | 2007 | 1.14万 | 2023 | 1.51万 |
| 1992 | 6,992 | 2008 | 1.13万 | 2024 | 1.56万 |
| 1993 | 7,339 | 2009 | 1.07万 | 2025 | 1.59万 |
| 1994 | 7,316 | 2010 | 1.08万 | 2026 | 1.63万 |
| 1995 | 7,562 | 2011 | 1.12万 | | |
表を表示
| 1980 | 5,005 | 1996 | 9,255 | 2012 | 1.18万 |
| 1981 | 5,006 | 1997 | 9,312 | 2013 | 1.2万 |
| 1982 | 4,543 | 1998 | 9,329 | 2014 | 1.22万 |
| 1983 | 4,687 | 1999 | 1万 | 2015 | 1.23万 |
| 1984 | 5,080 | 2000 | 1.09万 | 2016 | 1.21万 |
| 1985 | 4,872 | 2001 | 1.12万 | 2017 | 1.16万 |
| 1986 | 5,080 | 2002 | 1.15万 | 2018 | 1.15万 |
| 1987 | 6,038 | 2003 | 1.23万 | 2019 | 1.17万 |
| 1988 | 6,563 | 2004 | 1.26万 | 2020 | 9,976 |
| 1989 | 7,385 | 2005 | 1.25万 | 2021 | 1.16万 |
| 1990 | 7,983 | 2006 | 1.28万 | 2022 | 1.27万 |
| 1991 | 8,693 | 2007 | 1.28万 | 2023 | 1.26万 |
| 1992 | 9,554 | 2008 | 1.23万 | 2024 | 1.28万 |
| 1993 | 9,843 | 2009 | 1.19万 | 2025 | 1.29万 |
| 1994 | 9,561 | 2010 | 1.18万 | 2026 | 1.3万 |
| 1995 | 9,387 | 2011 | 1.16万 | | |