表を表示
| 1980 | 705 | 1996 | 3,044 | 2012 | 5,726 |
| 1981 | 745 | 1997 | 2,468 | 2013 | 6,018 |
| 1982 | 767 | 1998 | 1,846 | 2014 | 5,801 |
| 1983 | 824 | 1999 | 2,033 | 2015 | 5,689 |
| 1984 | 845 | 2000 | 2,006 | 2016 | 5,834 |
| 1985 | 772 | 2001 | 1,890 | 2017 | 6,413 |
| 1986 | 840 | 2002 | 2,090 | 2018 | 7,100 |
| 1987 | 968 | 2003 | 2,348 | 2019 | 7,606 |
| 1988 | 1,161 | 2004 | 2,642 | 2020 | 6,983 |
| 1989 | 1,338 | 2005 | 2,868 | 2021 | 7,055 |
| 1990 | 1,564 | 2006 | 3,331 | 2022 | 6,910 |
| 1991 | 1,769 | 2007 | 3,919 | 2023 | 7,211 |
| 1992 | 1,999 | 2008 | 4,309 | 2024 | 7,387 |
| 1993 | 2,209 | 2009 | 4,135 | 2025 | 8,057 |
| 1994 | 2,491 | 2010 | 4,974 | 2026 | 8,105 |
| 1995 | 2,847 | 2011 | 5,374 | | |
表を表示
| 1980 | 1.44万 | 1996 | 7.71万 | 2012 | 17.8万 |
| 1981 | 1.63万 | 1997 | 7.74万 | 2013 | 18.5万 |
| 1982 | 1.77万 | 1998 | 7.63万 | 2014 | 18.8万 |
| 1983 | 1.9万 | 1999 | 7.69万 | 2015 | 19.5万 |
| 1984 | 2万 | 2000 | 8.05万 | 2016 | 20.6万 |
| 1985 | 2.1万 | 2001 | 8.4万 | 2017 | 21.8万 |
| 1986 | 2.21万 | 2002 | 8.98万 | 2018 | 22.9万 |
| 1987 | 2.49万 | 2003 | 9.74万 | 2019 | 23.6万 |
| 1988 | 2.94万 | 2004 | 10.6万 | 2020 | 21.9万 |
| 1989 | 3.44万 | 2005 | 11.5万 | 2021 | 22.6万 |
| 1990 | 4万 | 2006 | 12.6万 | 2022 | 24.2万 |
| 1991 | 4.51万 | 2007 | 13.5万 | 2023 | 25.1万 |
| 1992 | 5.08万 | 2008 | 14.4万 | 2024 | 26.1万 |
| 1993 | 5.59万 | 2009 | 14.2万 | 2025 | 26.5万 |
| 1994 | 6.27万 | 2010 | 15.8万 | 2026 | 27.2万 |
| 1995 | 7.09万 | 2011 | 16.4万 | | |
表を表示
| 1980 | 3.33万 | 1996 | 8.91万 | 2012 | 12.8万 |
| 1981 | 3.46万 | 1997 | 8.56万 | 2013 | 13.1万 |
| 1982 | 3.57万 | 1998 | 7.81万 | 2014 | 13.1万 |
| 1983 | 3.7万 | 1999 | 8.07万 | 2015 | 13.5万 |
| 1984 | 3.85万 | 2000 | 8.34万 | 2016 | 13.9万 |
| 1985 | 3.95万 | 2001 | 8.54万 | 2017 | 14.4万 |
| 1986 | 4.1万 | 2002 | 8.98万 | 2018 | 15万 |
| 1987 | 4.41万 | 2003 | 9.53万 | 2019 | 15.3万 |
| 1988 | 4.91万 | 2004 | 10万 | 2020 | 14.3万 |
| 1989 | 5.42万 | 2005 | 10.4万 | 2021 | 14.5万 |
| 1990 | 5.96万 | 2006 | 10.8万 | 2022 | 14.9万 |
| 1991 | 6.39万 | 2007 | 11.3万 | 2023 | 15.2万 |
| 1992 | 6.91万 | 2008 | 11.4万 | 2024 | 15.7万 |
| 1993 | 7.44万 | 2009 | 11.2万 | 2025 | 16.1万 |
| 1994 | 7.96万 | 2010 | 12万 | 2026 | 16.3万 |
| 1995 | 8.52万 | 2011 | 12万 | | |