表を表示
| 1980 | 1,225 | 1996 | 1,739 | 2012 | 3,225 |
| 1981 | 969 | 1997 | 1,553 | 2013 | 3,464 |
| 1982 | 954 | 1998 | 1,634 | 2014 | 3,520 |
| 1983 | 842 | 1999 | 1,604 | 2015 | 3,236 |
| 1984 | 752 | 2000 | 1,477 | 2016 | 3,235 |
| 1985 | 742 | 2001 | 1,481 | 2017 | 3,401 |
| 1986 | 957 | 2002 | 1,566 | 2018 | 3,616 |
| 1987 | 1,031 | 2003 | 1,909 | 2019 | 3,623 |
| 1988 | 1,193 | 2004 | 2,159 | 2020 | 3,375 |
| 1989 | 1,200 | 2005 | 2,233 | 2021 | 3,911 |
| 1990 | 1,351 | 2006 | 2,427 | 2022 | 3,579 |
| 1991 | 1,418 | 2007 | 2,760 | 2023 | 3,945 |
| 1992 | 1,454 | 2008 | 3,189 | 2024 | 4,298 |
| 1993 | 1,341 | 2009 | 3,163 | 2025 | 4,842 |
| 1994 | 1,482 | 2010 | 3,135 | 2026 | 5,107 |
| 1995 | 1,601 | 2011 | 3,367 | | |
表を表示
| 1980 | 4,823 | 1996 | 1.52万 | 2012 | 2.78万 |
| 1981 | 5,014 | 1997 | 1.48万 | 2013 | 2.91万 |
| 1982 | 5,744 | 1998 | 1.57万 | 2014 | 2.96万 |
| 1983 | 5,988 | 1999 | 1.57万 | 2015 | 3.16万 |
| 1984 | 6,628 | 2000 | 1.57万 | 2016 | 3.17万 |
| 1985 | 7,463 | 2001 | 1.67万 | 2017 | 3.3万 |
| 1986 | 8,711 | 2002 | 1.73万 | 2018 | 3.39万 |
| 1987 | 8,617 | 2003 | 1.83万 | 2019 | 3.48万 |
| 1988 | 9,797 | 2004 | 1.91万 | 2020 | 3.21万 |
| 1989 | 1.02万 | 2005 | 1.98万 | 2021 | 3.52万 |
| 1990 | 1.11万 | 2006 | 2.13万 | 2022 | 3.64万 |
| 1991 | 1.23万 | 2007 | 2.26万 | 2023 | 4万 |
| 1992 | 1.24万 | 2008 | 2.47万 | 2024 | 4.27万 |
| 1993 | 1.25万 | 2009 | 2.55万 | 2025 | 4.53万 |
| 1994 | 1.36万 | 2010 | 2.64万 | 2026 | 4.79万 |
| 1995 | 1.37万 | 2011 | 2.72万 | | |
表を表示
| 1980 | 1.42万 | 1996 | 1.83万 | 2012 | 2.83万 |
| 1981 | 1.34万 | 1997 | 1.77万 | 2013 | 2.92万 |
| 1982 | 1.44万 | 1998 | 1.88万 | 2014 | 2.96万 |
| 1983 | 1.39万 | 1999 | 1.86万 | 2015 | 3.06万 |
| 1984 | 1.42万 | 2000 | 1.87万 | 2016 | 3.05万 |
| 1985 | 1.48万 | 2001 | 1.98万 | 2017 | 3.17万 |
| 1986 | 1.56万 | 2002 | 2.03万 | 2018 | 3.23万 |
| 1987 | 1.49万 | 2003 | 2.13万 | 2019 | 3.29万 |
| 1988 | 1.6万 | 2004 | 2.2万 | 2020 | 3.02万 |
| 1989 | 1.6万 | 2005 | 2.25万 | 2021 | 3.24万 |
| 1990 | 1.66万 | 2006 | 2.39万 | 2022 | 3.26万 |
| 1991 | 1.75万 | 2007 | 2.42万 | 2023 | 3.35万 |
| 1992 | 1.67万 | 2008 | 2.53万 | 2024 | 3.44万 |
| 1993 | 1.63万 | 2009 | 2.61万 | 2025 | 3.58万 |
| 1994 | 1.78万 | 2010 | 2.67万 | 2026 | 3.72万 |
| 1995 | 1.64万 | 2011 | 2.78万 | | |