表を表示
| 1980 | 569 | 1996 | 1,611 | 2012 | 3,958 |
| 1981 | 669 | 1997 | 1,569 | 2013 | 4,175 |
| 1982 | 522 | 1998 | 1,632 | 2014 | 4,178 |
| 1983 | 494 | 1999 | 1,709 | 2015 | 3,561 |
| 1984 | 494 | 2000 | 1,690 | 2016 | 3,749 |
| 1985 | 542 | 2001 | 1,875 | 2017 | 4,030 |
| 1986 | 685 | 2002 | 2,015 | 2018 | 4,432 |
| 1987 | 836 | 2003 | 2,524 | 2019 | 4,505 |
| 1988 | 997 | 2004 | 2,839 | 2020 | 3,647 |
| 1989 | 1,007 | 2005 | 3,091 | 2021 | 4,072 |
| 1990 | 1,224 | 2006 | 3,174 | 2022 | 4,445 |
| 1991 | 1,285 | 2007 | 3,565 | 2023 | 4,913 |
| 1992 | 1,356 | 2008 | 4,190 | 2024 | 5,329 |
| 1993 | 1,190 | 2009 | 3,919 | 2025 | 5,995 |
| 1994 | 1,247 | 2010 | 3,819 | 2026 | 6,670 |
| 1995 | 1,541 | 2011 | 4,259 | | |
表を表示
| 1980 | 2.29万 | 1996 | 13.3万 | 2012 | 34.2万 |
| 1981 | 3.26万 | 1997 | 14.6万 | 2013 | 34.7万 |
| 1982 | 3.04万 | 1998 | 16万 | 2014 | 34.7万 |
| 1983 | 3.54万 | 1999 | 17.6万 | 2015 | 35.4万 |
| 1984 | 4.19万 | 2000 | 19.6万 | 2016 | 37.4万 |
| 1985 | 4.97万 | 2001 | 23.1万 | 2017 | 39.4万 |
| 1986 | 5.49万 | 2002 | 23.6万 | 2018 | 41.4万 |
| 1987 | 6.06万 | 2003 | 24.7万 | 2019 | 44.4万 |
| 1988 | 7.19万 | 2004 | 25.2万 | 2020 | 35.2万 |
| 1989 | 7.85万 | 2005 | 27.4万 | 2021 | 37.9万 |
| 1990 | 8.58万 | 2006 | 27.9万 | 2022 | 46.5万 |
| 1991 | 9.17万 | 2007 | 28.7万 | 2023 | 50.1万 |
| 1992 | 9.23万 | 2008 | 31.6万 | 2024 | 54.3万 |
| 1993 | 9.57万 | 2009 | 31.4万 | 2025 | 58.5万 |
| 1994 | 10.2万 | 2010 | 31.8万 | 2026 | 62.4万 |
| 1995 | 11.8万 | 2011 | 33.8万 | | |
表を表示
| 1980 | 10.2万 | 1996 | 16.9万 | 2012 | 35.2万 |
| 1981 | 10.9万 | 1997 | 17.8万 | 2013 | 35.2万 |
| 1982 | 11万 | 1998 | 18.9万 | 2014 | 35.3万 |
| 1983 | 11.8万 | 1999 | 20.7万 | 2015 | 35.4万 |
| 1984 | 12万 | 2000 | 21.7万 | 2016 | 36.8万 |
| 1985 | 12.7万 | 2001 | 22.6万 | 2017 | 38.3万 |
| 1986 | 12.8万 | 2002 | 23.4万 | 2018 | 39.5万 |
| 1987 | 13.1万 | 2003 | 24.7万 | 2019 | 42.1万 |
| 1988 | 13.6万 | 2004 | 25.5万 | 2020 | 33.2万 |
| 1989 | 14.1万 | 2005 | 26.6万 | 2021 | 35.4万 |
| 1990 | 13.9万 | 2006 | 28.6万 | 2022 | 40.8万 |
| 1991 | 13.7万 | 2007 | 32.6万 | 2023 | 42.5万 |
| 1992 | 13.8万 | 2008 | 34.5万 | 2024 | 45.4万 |
| 1993 | 14.5万 | 2009 | 33.6万 | 2025 | 47.6万 |
| 1994 | 15.5万 | 2010 | 33.9万 | 2026 | 49.6万 |
| 1995 | 16.3万 | 2011 | 35万 | | |