Show data table
| 1980 | 1,745 | 1996 | 13,865 | 2012 | 26,601 |
| 1981 | 1,918 | 1997 | 12,841 | 2013 | 28,449 |
| 1982 | 2,032 | 1998 | 8,573 | 2014 | 30,667 |
| 1983 | 2,246 | 1999 | 11,057 | 2015 | 30,172 |
| 1984 | 2,469 | 2000 | 12,717 | 2016 | 30,826 |
| 1985 | 2,543 | 2001 | 11,983 | 2017 | 33,297 |
| 1986 | 2,911 | 2002 | 13,637 | 2018 | 35,364 |
| 1987 | 3,658 | 2003 | 15,211 | 2019 | 33,827 |
| 1988 | 4,889 | 2004 | 17,108 | 2020 | 33,653 |
| 1989 | 5,989 | 2005 | 20,163 | 2021 | 37,518 |
| 1990 | 6,813 | 2006 | 22,597 | 2022 | 34,822 |
| 1991 | 7,873 | 2007 | 25,075 | 2023 | 35,674 |
| 1992 | 8,387 | 2008 | 22,291 | 2024 | 36,239 |
| 1993 | 9,181 | 2009 | 19,933 | 2025 | 36,227 |
| 1994 | 10,730 | 2010 | 24,069 | 2026 | 37,412 |
| 1995 | 13,002 | 2011 | 26,178 | | |
Show data table
| 1980 | 1.06M | 1996 | 11.2M | 2012 | 30M |
| 1981 | 1.31M | 1997 | 12.2M | 2013 | 31.2M |
| 1982 | 1.49M | 1998 | 12M | 2014 | 32.3M |
| 1983 | 1.74M | 1999 | 13.2M | 2015 | 34.1M |
| 1984 | 1.99M | 2000 | 14.4M | 2016 | 35.8M |
| 1985 | 2.21M | 2001 | 15.5M | 2017 | 37.7M |
| 1986 | 2.57M | 2002 | 17.1M | 2018 | 38.9M |
| 1987 | 3.01M | 2003 | 18.1M | 2019 | 39.4M |
| 1988 | 3.58M | 2004 | 19.6M | 2020 | 39.7M |
| 1989 | 4.02M | 2005 | 20.7M | 2021 | 42.9M |
| 1990 | 4.82M | 2006 | 21.6M | 2022 | 45M |
| 1991 | 5.77M | 2007 | 23.3M | 2023 | 46.6M |
| 1992 | 6.55M | 2008 | 24.5M | 2024 | 49.4M |
| 1993 | 7.37M | 2009 | 25.5M | 2025 | 51.5M |
| 1994 | 8.62M | 2010 | 27.8M | 2026 | 54M |
| 1995 | 10M | 2011 | 29M | | |
Show data table
| 1980 | 4.95M | 1996 | 17.8M | 2012 | 33.4M |
| 1981 | 5.23M | 1997 | 18.7M | 2013 | 34.4M |
| 1982 | 5.59M | 1998 | 17.7M | 2014 | 35.2M |
| 1983 | 6.25M | 1999 | 19.6M | 2015 | 36.1M |
| 1984 | 6.83M | 2000 | 21.2M | 2016 | 37.1M |
| 1985 | 7.3M | 2001 | 22.1M | 2017 | 38.2M |
| 1986 | 8.06M | 2002 | 23.6M | 2018 | 39.3M |
| 1987 | 9.01M | 2003 | 24.2M | 2019 | 40M |
| 1988 | 10M | 2004 | 25.4M | 2020 | 39.7M |
| 1989 | 10.6M | 2005 | 26.4M | 2021 | 41.6M |
| 1990 | 11.6M | 2006 | 27.7M | 2022 | 42.8M |
| 1991 | 12.7M | 2007 | 29.2M | 2023 | 43.5M |
| 1992 | 13.4M | 2008 | 29.8M | 2024 | 44.3M |
| 1993 | 14.2M | 2009 | 29.9M | 2025 | 44.8M |
| 1994 | 15.3M | 2010 | 31.8M | 2026 | 45.7M |
| 1995 | 16.6M | 2011 | 32.7M | | |