表を表示
| 1981 | 1,113 | 1997 | 4,254 | 2013 | 7,153 |
| 1982 | 1,218 | 1998 | 4,527 | 2014 | 7,389 |
| 1983 | 1,347 | 1999 | 4,658 | 2015 | 7,596 |
| 1984 | 1,495 | 2000 | 4,681 | 2016 | 8,089 |
| 1985 | 1,643 | 2001 | 4,775 | 2017 | 7,507 |
| 1986 | 1,865 | 2002 | 4,680 | 2018 | 7,981 |
| 1987 | 2,103 | 2003 | 4,826 | 2019 | 8,466 |
| 1988 | 2,378 | 2004 | 5,165 | 2020 | 6,872 |
| 1989 | 2,582 | 2005 | 5,127 | 2021 | 7,530 |
| 1990 | 2,820 | 2006 | 5,497 | 2022 | 8,193 |
| 1991 | 3,087 | 2007 | 5,940 | 2023 | 8,853 |
| 1992 | 3,288 | 2008 | 6,463 | 2024 | 9,204 |
| 1993 | 3,449 | 2009 | 6,904 | 2025 | 9,895 |
| 1994 | 3,713 | 2010 | 6,981 | 2026 | 1.05万 |
| 1995 | 3,855 | 2011 | 7,160 | | |
| 1996 | 4,104 | 2012 | 6,995 | | |
表を表示
| 1981 | 3,004 | 1997 | 1.15万 | 2013 | 1.93万 |
| 1982 | 3,287 | 1998 | 1.22万 | 2014 | 1.99万 |
| 1983 | 3,636 | 1999 | 1.26万 | 2015 | 2.05万 |
| 1984 | 4,037 | 2000 | 1.26万 | 2016 | 2.18万 |
| 1985 | 4,435 | 2001 | 1.29万 | 2017 | 2.03万 |
| 1986 | 5,035 | 2002 | 1.26万 | 2018 | 2.15万 |
| 1987 | 5,678 | 2003 | 1.3万 | 2019 | 2.29万 |
| 1988 | 6,420 | 2004 | 1.39万 | 2020 | 1.86万 |
| 1989 | 6,972 | 2005 | 1.38万 | 2021 | 2.03万 |
| 1990 | 7,613 | 2006 | 1.48万 | 2022 | 2.21万 |
| 1991 | 8,336 | 2007 | 1.6万 | 2023 | 2.39万 |
| 1992 | 8,877 | 2008 | 1.75万 | 2024 | 2.48万 |
| 1993 | 9,311 | 2009 | 1.86万 | 2025 | 2.67万 |
| 1994 | 1万 | 2010 | 1.88万 | 2026 | 2.82万 |
| 1995 | 1.04万 | 2011 | 1.93万 | | |
| 1996 | 1.11万 | 2012 | 1.89万 | | |
表を表示
| 1981 | 7,148 | 1997 | 1.24万 | 2013 | 1.68万 |
| 1982 | 7,470 | 1998 | 1.28万 | 2014 | 1.74万 |
| 1983 | 7,689 | 1999 | 1.29万 | 2015 | 1.67万 |
| 1984 | 8,040 | 2000 | 1.32万 | 2016 | 1.72万 |
| 1985 | 8,184 | 2001 | 1.32万 | 2017 | 1.64万 |
| 1986 | 8,794 | 2002 | 1.28万 | 2018 | 1.7万 |
| 1987 | 9,383 | 2003 | 1.36万 | 2019 | 1.73万 |
| 1988 | 1.02万 | 2004 | 1.41万 | 2020 | 1.42万 |
| 1989 | 1.02万 | 2005 | 1.42万 | 2021 | 1.51万 |
| 1990 | 1.08万 | 2006 | 1.48万 | 2022 | 1.58万 |
| 1991 | 1.09万 | 2007 | 1.58万 | 2023 | 1.65万 |
| 1992 | 1.12万 | 2008 | 1.69万 | 2024 | 1.7万 |
| 1993 | 1.14万 | 2009 | 1.67万 | 2025 | 1.77万 |
| 1994 | 1.14万 | 2010 | 1.69万 | 2026 | 1.81万 |
| 1995 | 1.18万 | 2011 | 1.7万 | | |
| 1996 | 1.21万 | 2012 | 1.7万 | | |