表を表示
| 1980 | 1,329 | 1996 | 1,943 | 2012 | 4,570 |
| 1981 | 1,360 | 1997 | 2,044 | 2013 | 4,279 |
| 1982 | 1,177 | 1998 | 1,852 | 2014 | 4,086 |
| 1983 | 1,172 | 1999 | 1,799 | 2015 | 3,701 |
| 1984 | 969 | 2000 | 1,756 | 2016 | 3,505 |
| 1985 | 739 | 2001 | 1,544 | 2017 | 4,176 |
| 1986 | 909 | 2002 | 1,424 | 2018 | 4,302 |
| 1987 | 1,143 | 2003 | 2,166 | 2019 | 4,237 |
| 1988 | 1,296 | 2004 | 2,717 | 2020 | 3,755 |
| 1989 | 1,262 | 2005 | 3,095 | 2021 | 4,317 |
| 1990 | 1,490 | 2006 | 3,192 | 2022 | 4,216 |
| 1991 | 1,487 | 2007 | 3,339 | 2023 | 4,060 |
| 1992 | 1,588 | 2008 | 3,157 | 2024 | 4,220 |
| 1993 | 1,620 | 2009 | 3,420 | 2025 | 4,442 |
| 1994 | 1,755 | 2010 | 4,197 | 2026 | 4,927 |
| 1995 | 2,093 | 2011 | 4,538 | | |
表を表示
| 1980 | 1,035 | 1996 | 8,348 | 2012 | 3.75万 |
| 1981 | 1,193 | 1997 | 9,416 | 2013 | 4.13万 |
| 1982 | 1,278 | 1998 | 1.02万 | 2014 | 4.43万 |
| 1983 | 1,305 | 1999 | 1.1万 | 2015 | 4.72万 |
| 1984 | 1,431 | 2000 | 1.22万 | 2016 | 5.16万 |
| 1985 | 1,647 | 2001 | 1.33万 | 2017 | 5.56万 |
| 1986 | 2,076 | 2002 | 1.5万 | 2018 | 5.69万 |
| 1987 | 2,328 | 2003 | 1.64万 | 2019 | 6.12万 |
| 1988 | 2,946 | 2004 | 1.75万 | 2020 | 6.18万 |
| 1989 | 3,310 | 2005 | 1.97万 | 2021 | 6.38万 |
| 1990 | 3,856 | 2006 | 2.16万 | 2022 | 6.9万 |
| 1991 | 4,105 | 2007 | 2.36万 | 2023 | 7.49万 |
| 1992 | 4,529 | 2008 | 2.6万 | 2024 | 7.74万 |
| 1993 | 5,292 | 2009 | 2.89万 | 2025 | 7.95万 |
| 1994 | 6,229 | 2010 | 3.07万 | 2026 | 8.23万 |
| 1995 | 7,591 | 2011 | 3.29万 | | |
表を表示
| 1980 | 2.55万 | 1996 | 3.53万 | 2012 | 5.25万 |
| 1981 | 2.64万 | 1997 | 3.58万 | 2013 | 5.43万 |
| 1982 | 2.59万 | 1998 | 3.62万 | 2014 | 5.51万 |
| 1983 | 2.49万 | 1999 | 3.69万 | 2015 | 5.57万 |
| 1984 | 2.47万 | 2000 | 3.72万 | 2016 | 5.7万 |
| 1985 | 2.43万 | 2001 | 3.72万 | 2017 | 5.86万 |
| 1986 | 2.77万 | 2002 | 3.85万 | 2018 | 5.81万 |
| 1987 | 2.93万 | 2003 | 3.97万 | 2019 | 6.12万 |
| 1988 | 3.01万 | 2004 | 4.09万 | 2020 | 5.88万 |
| 1989 | 3.14万 | 2005 | 4.32万 | 2021 | 6.06万 |
| 1990 | 3.31万 | 2006 | 4.55万 | 2022 | 6.02万 |
| 1991 | 3.24万 | 2007 | 4.73万 | 2023 | 6.16万 |
| 1992 | 3.22万 | 2008 | 4.73万 | 2024 | 6.28万 |
| 1993 | 3.22万 | 2009 | 4.78万 | 2025 | 6.44万 |
| 1994 | 3.3万 | 2010 | 4.93万 | 2026 | 6.62万 |
| 1995 | 3.46万 | 2011 | 5.01万 | | |