表を表示
| 1980 | 2,056 | 1996 | 2,976 | 2012 | 5,022 |
| 1981 | 2,062 | 1997 | 2,900 | 2013 | 5,277 |
| 1982 | 1,942 | 1998 | 2,270 | 2014 | 5,622 |
| 1983 | 1,781 | 1999 | 2,639 | 2015 | 5,397 |
| 1984 | 1,829 | 2000 | 2,275 | 2016 | 5,658 |
| 1985 | 1,744 | 2001 | 2,234 | 2017 | 6,050 |
| 1986 | 1,954 | 2002 | 2,463 | 2018 | 6,270 |
| 1987 | 1,777 | 2003 | 3,073 | 2019 | 5,968 |
| 1988 | 1,672 | 2004 | 3,597 | 2020 | 4,693 |
| 1989 | 1,747 | 2005 | 3,940 | 2021 | 4,589 |
| 1990 | 1,959 | 2006 | 4,051 | 2022 | 5,460 |
| 1991 | 2,012 | 2007 | 4,405 | 2023 | 5,971 |
| 1992 | 2,209 | 2008 | 4,554 | 2024 | 6,468 |
| 1993 | 2,340 | 2009 | 3,682 | 2025 | 6,508 |
| 1994 | 2,591 | 2010 | 4,011 | 2026 | 6,802 |
| 1995 | 2,780 | 2011 | 4,803 | | |
表を表示
| 1980 | 1,682 | 1996 | 4,176 | 2012 | 8,989 |
| 1981 | 1,762 | 1997 | 4,187 | 2013 | 9,718 |
| 1982 | 1,811 | 1998 | 4,510 | 2014 | 1.06万 |
| 1983 | 1,811 | 1999 | 5,197 | 2015 | 1.13万 |
| 1984 | 1,980 | 2000 | 4,842 | 2016 | 1.19万 |
| 1985 | 2,012 | 2001 | 5,087 | 2017 | 1.25万 |
| 1986 | 2,214 | 2002 | 5,387 | 2018 | 1.31万 |
| 1987 | 2,210 | 2003 | 5,826 | 2019 | 1.29万 |
| 1988 | 2,392 | 2004 | 6,233 | 2020 | 1.02万 |
| 1989 | 2,592 | 2005 | 6,663 | 2021 | 9,502 |
| 1990 | 2,901 | 2006 | 7,013 | 2022 | 1.2万 |
| 1991 | 2,968 | 2007 | 7,094 | 2023 | 1.34万 |
| 1992 | 3,320 | 2008 | 7,259 | 2024 | 1.47万 |
| 1993 | 3,607 | 2009 | 7,211 | 2025 | 1.48万 |
| 1994 | 3,793 | 2010 | 7,695 | 2026 | 1.54万 |
| 1995 | 3,910 | 2011 | 8,601 | | |
表を表示
| 1980 | 6,625 | 1996 | 8,509 | 2012 | 9,674 |
| 1981 | 6,856 | 1997 | 8,230 | 2013 | 1.01万 |
| 1982 | 6,608 | 1998 | 8,247 | 2014 | 1.06万 |
| 1983 | 6,173 | 1999 | 8,889 | 2015 | 1.1万 |
| 1984 | 6,654 | 2000 | 8,687 | 2016 | 1.13万 |
| 1985 | 6,303 | 2001 | 8,821 | 2017 | 1.17万 |
| 1986 | 6,658 | 2002 | 9,041 | 2018 | 1.21万 |
| 1987 | 6,154 | 2003 | 9,046 | 2019 | 1.29万 |
| 1988 | 6,360 | 2004 | 9,476 | 2020 | 1.06万 |
| 1989 | 7,102 | 2005 | 9,294 | 2021 | 1.01万 |
| 1990 | 7,453 | 2006 | 9,436 | 2022 | 1.18万 |
| 1991 | 7,194 | 2007 | 9,266 | 2023 | 1.29万 |
| 1992 | 7,572 | 2008 | 9,351 | 2024 | 1.32万 |
| 1993 | 7,707 | 2009 | 9,161 | 2025 | 1.36万 |
| 1994 | 8,037 | 2010 | 9,384 | 2026 | 1.38万 |
| 1995 | 8,196 | 2011 | 9,587 | | |