Show data table
| 1980 | 1,356 | 1996 | 3,179 | 2012 | 8,500 |
| 1981 | 1,269 | 1997 | 3,782 | 2013 | 8,253 |
| 1982 | 854 | 1998 | 4,082 | 2014 | 7,661 |
| 1983 | 1,162 | 1999 | 4,041 | 2015 | 7,797 |
| 1984 | 1,349 | 2000 | 3,939 | 2016 | 8,088 |
| 1985 | 1,105 | 2001 | 3,955 | 2017 | 8,656 |
| 1986 | 840 | 2002 | 4,236 | 2018 | 9,291 |
| 1987 | 960 | 2003 | 4,326 | 2019 | 8,818 |
| 1988 | 946 | 2004 | 4,625 | 2020 | 4,172 |
| 1989 | 761 | 2005 | 4,630 | 2021 | 3,670 |
| 1990 | 779 | 2006 | 4,666 | 2022 | 4,677 |
| 1991 | 1,198 | 2007 | 5,162 | 2023 | 4,574 |
| 1992 | 1,461 | 2008 | 5,958 | 2024 | 5,480 |
| 1993 | 1,947 | 2009 | 7,150 | 2025 | 6,443 |
| 1994 | 2,312 | 2010 | 7,695 | | |
| 1995 | 2,771 | 2011 | 7,914 | | |
Show data table
| 1980 | 4,661 | 1996 | 4.99M | 2012 | 12.8M |
| 1981 | 5,476 | 1997 | 5.82M | 2013 | 12.4M |
| 1982 | 4,049 | 1998 | 6.19M | 2014 | 11.5M |
| 1983 | 5,263 | 1999 | 6.09M | 2015 | 11.8M |
| 1984 | 8,786 | 2000 | 5.94M | 2016 | 12.2M |
| 1985 | 18,142 | 2001 | 5.96M | 2017 | 13M |
| 1986 | 32,242 | 2002 | 6.39M | 2018 | 14M |
| 1987 | 215,546 | 2003 | 6.52M | 2019 | 13.9M |
| 1988 | 387,014 | 2004 | 6.97M | 2020 | 16.2M |
| 1989 | 377,831 | 2005 | 6.98M | 2021 | 45.6M |
| 1990 | 541,714 | 2006 | 7.03M | 2022 | 125M |
| 1991 | 1.11M | 2007 | 7.78M | 2023 | 398M |
| 1992 | 2.5M | 2008 | 8.98M | 2024 | 491M |
| 1993 | 3.39M | 2009 | 10.8M | 2025 | 577M |
| 1994 | 3.88M | 2010 | 11.6M | | |
| 1995 | 4.49M | 2011 | 11.9M | | |
Show data table
| 1980 | 12.9M | 1996 | 9.62M | 2012 | 15.5M |
| 1981 | 12.7M | 1997 | 10.4M | 2013 | 14.6M |
| 1982 | 7.94M | 1998 | 10.6M | 2014 | 13.6M |
| 1983 | 9.62M | 1999 | 10.4M | 2015 | 13.4M |
| 1984 | 13.7M | 2000 | 10.3M | 2016 | 13.9M |
| 1985 | 16.6M | 2001 | 10.6M | 2017 | 14.4M |
| 1986 | 15.1M | 2002 | 10.8M | 2018 | 14.5M |
| 1987 | 17.2M | 2003 | 10.8M | 2019 | 13.9M |
| 1988 | 12.1M | 2004 | 11.4M | 2020 | 10.4M |
| 1989 | 6.88M | 2005 | 11.6M | 2021 | 10.7M |
| 1990 | 5.84M | 2006 | 11.5M | 2022 | 11M |
| 1991 | 7.91M | 2007 | 12.4M | 2023 | 11.2M |
| 1992 | 8.09M | 2008 | 13.3M | 2024 | 10.4M |
| 1993 | 8.49M | 2009 | 14.5M | 2025 | 10.8M |
| 1994 | 9.01M | 2010 | 15.5M | | |
| 1995 | 9.42M | 2011 | 15.5M | | |