表を表示
| 1980 | 3,075 | 1996 | 3,870 | 2012 | 8,177 |
| 1981 | 3,123 | 1997 | 3,938 | 2013 | 7,429 |
| 1982 | 2,806 | 1998 | 3,508 | 2014 | 6,951 |
| 1983 | 3,063 | 1999 | 3,424 | 2015 | 6,227 |
| 1984 | 2,634 | 2000 | 3,382 | 2016 | 5,732 |
| 1985 | 1,955 | 2001 | 2,964 | 2017 | 6,665 |
| 1986 | 2,176 | 2002 | 2,778 | 2018 | 6,980 |
| 1987 | 2,801 | 2003 | 4,191 | 2019 | 6,610 |
| 1988 | 2,955 | 2004 | 5,393 | 2020 | 5,660 |
| 1989 | 3,004 | 2005 | 6,008 | 2021 | 6,971 |
| 1990 | 3,426 | 2006 | 6,251 | 2022 | 6,694 |
| 1991 | 3,588 | 2007 | 6,737 | 2023 | 6,193 |
| 1992 | 3,803 | 2008 | 6,321 | 2024 | 6,435 |
| 1993 | 3,716 | 2009 | 6,522 | 2025 | 6,769 |
| 1994 | 3,786 | 2010 | 8,102 | 2026 | 7,503 |
| 1995 | 4,145 | 2011 | 8,773 | | |
表を表示
| 1980 | 2,395 | 1996 | 1.66万 | 2012 | 6.71万 |
| 1981 | 2,740 | 1997 | 1.81万 | 2013 | 7.17万 |
| 1982 | 3,047 | 1998 | 1.94万 | 2014 | 7.54万 |
| 1983 | 3,412 | 1999 | 2.09万 | 2015 | 7.94万 |
| 1984 | 3,887 | 2000 | 2.35万 | 2016 | 8.43万 |
| 1985 | 4,356 | 2001 | 2.55万 | 2017 | 8.88万 |
| 1986 | 4,969 | 2002 | 2.92万 | 2018 | 9.24万 |
| 1987 | 5,704 | 2003 | 3.17万 | 2019 | 9.55万 |
| 1988 | 6,716 | 2004 | 3.48万 | 2020 | 9.32万 |
| 1989 | 7,879 | 2005 | 3.82万 | 2021 | 10.3万 |
| 1990 | 8,865 | 2006 | 4.23万 | 2022 | 11万 |
| 1991 | 9,906 | 2007 | 4.75万 | 2023 | 11.4万 |
| 1992 | 1.08万 | 2008 | 5.22万 | 2024 | 11.8万 |
| 1993 | 1.21万 | 2009 | 5.5万 | 2025 | 12.1万 |
| 1994 | 1.34万 | 2010 | 5.93万 | 2026 | 12.5万 |
| 1995 | 1.5万 | 2011 | 6.36万 | | |
表を表示
| 1980 | 6.99万 | 1996 | 6.09万 | 2012 | 7.9万 |
| 1981 | 7.18万 | 1997 | 6.14万 | 2013 | 7.97万 |
| 1982 | 6.97万 | 1998 | 6.08万 | 2014 | 7.96万 |
| 1983 | 6.67万 | 1999 | 6.13万 | 2015 | 7.94万 |
| 1984 | 6.83万 | 2000 | 6.3万 | 2016 | 7.89万 |
| 1985 | 6.59万 | 2001 | 6.35万 | 2017 | 7.87万 |
| 1986 | 6.45万 | 2002 | 6.46万 | 2018 | 7.88万 |
| 1987 | 6.44万 | 2003 | 6.59万 | 2019 | 7.78万 |
| 1988 | 6.57万 | 2004 | 6.82万 | 2020 | 7.2万 |
| 1989 | 6.58万 | 2005 | 7.1万 | 2021 | 7.49万 |
| 1990 | 6.42万 | 2006 | 7.41万 | 2022 | 7.56万 |
| 1991 | 6.2万 | 2007 | 7.69万 | 2023 | 7.53万 |
| 1992 | 5.92万 | 2008 | 7.82万 | 2024 | 7.48万 |
| 1993 | 5.84万 | 2009 | 7.59万 | 2025 | 7.47万 |
| 1994 | 5.89万 | 2010 | 7.71万 | 2026 | 7.45万 |
| 1995 | 5.95万 | 2011 | 7.84万 | | |