Show data table
| 1980 | 20.5% | 1996 | 22.8% | 2012 | 24.5% |
| 1981 | 22.2% | 1997 | 23.6% | 2013 | 23.7% |
| 1982 | 23.8% | 1998 | 23.6% | 2014 | 27.6% |
| 1983 | 22.8% | 1999 | 23.5% | 2015 | 25.6% |
| 1984 | 25.6% | 2000 | 23% | 2016 | 27.1% |
| 1985 | 25.6% | 2001 | 22.8% | 2017 | 25.1% |
| 1986 | 24.6% | 2002 | 23.7% | 2018 | 24.6% |
| 1987 | 24.8% | 2003 | 23.5% | 2019 | 25.7% |
| 1988 | 25.4% | 2004 | 22.1% | 2020 | 27% |
| 1989 | 25.7% | 2005 | 22.4% | 2021 | 30% |
| 1990 | 25.4% | 2006 | 23% | 2022 | 27.3% |
| 1991 | 25.8% | 2007 | 24.1% | 2023 | 27.2% |
| 1992 | 22.6% | 2008 | 27% | 2024 | 27.9% |
| 1993 | 21.3% | 2009 | 28.2% | 2025 | 28.7% |
| 1994 | 23.1% | 2010 | 27.4% | 2026 | 28.5% |
| 1995 | 21.4% | 2011 | 25.9% | | |
Show data table
| 1980 | 42M | 1996 | 217M | 2012 | 484M |
| 1981 | 58M | 1997 | 236M | 2013 | 489M |
| 1982 | 70M | 1998 | 255M | 2014 | 575M |
| 1983 | 73M | 1999 | 265M | 2015 | 543M |
| 1984 | 92M | 2000 | 265M | 2016 | 596M |
| 1985 | 101M | 2001 | 284M | 2017 | 572M |
| 1986 | 109M | 2002 | 312M | 2018 | 588M |
| 1987 | 122M | 2003 | 323M | 2019 | 631M |
| 1988 | 146M | 2004 | 329M | 2020 | 629M |
| 1989 | 156M | 2005 | 351M | 2021 | 719M |
| 1990 | 173M | 2006 | 399M | 2022 | 714M |
| 1991 | 186M | 2007 | 463M | 2023 | 770M |
| 1992 | 179M | 2008 | 535M | 2024 | 848M |
| 1993 | 173M | 2009 | 543M | 2025 | 912M |
| 1994 | 189M | 2010 | 532M | 2026 | 950M |
| 1995 | 193M | 2011 | 499M | | |
Show data table
| 1980 | 24.1% | 1996 | 21.2% | 2012 | 26.3% |
| 1981 | 24.9% | 1997 | 26.4% | 2013 | 29.5% |
| 1982 | 23.5% | 1998 | 25.4% | 2014 | 30.4% |
| 1983 | 24.7% | 1999 | 25.5% | 2015 | 27.6% |
| 1984 | 23.1% | 2000 | 23.8% | 2016 | 27.1% |
| 1985 | 21.4% | 2001 | 24.4% | 2017 | 26.6% |
| 1986 | 22.3% | 2002 | 25.7% | 2018 | 26.3% |
| 1987 | 23.7% | 2003 | 26% | 2019 | 29.1% |
| 1988 | 24.8% | 2004 | 24.9% | 2020 | 32.9% |
| 1989 | 27.6% | 2005 | 26.7% | 2021 | 37.2% |
| 1990 | 23.7% | 2006 | 26.1% | 2022 | 36.6% |
| 1991 | 26.2% | 2007 | 27.1% | 2023 | 39.7% |
| 1992 | 25.9% | 2008 | 28.3% | 2024 | 43.9% |
| 1993 | 22.8% | 2009 | 31% | 2025 | 41% |
| 1994 | 23% | 2010 | 31.1% | 2026 | 40.6% |
| 1995 | 20.3% | 2011 | 29.4% | | |
Show data table
| 1980 | 50M | 1996 | 202M | 2012 | 519M |
| 1981 | 65M | 1997 | 264M | 2013 | 609M |
| 1982 | 70M | 1998 | 274M | 2014 | 633M |
| 1983 | 79M | 1999 | 287M | 2015 | 586M |
| 1984 | 83M | 2000 | 275M | 2016 | 595M |
| 1985 | 84M | 2001 | 304M | 2017 | 607M |
| 1986 | 99M | 2002 | 339M | 2018 | 628M |
| 1987 | 117M | 2003 | 357M | 2019 | 716M |
| 1988 | 142M | 2004 | 369M | 2020 | 767M |
| 1989 | 168M | 2005 | 418M | 2021 | 891M |
| 1990 | 162M | 2006 | 453M | 2022 | 959M |
| 1991 | 189M | 2007 | 523M | 2023 | 1.12B |
| 1992 | 205M | 2008 | 560M | 2024 | 1.34B |
| 1993 | 186M | 2009 | 598M | 2025 | 1.3B |
| 1994 | 188M | 2010 | 604M | 2026 | 1.35B |
| 1995 | 183M | 2011 | 566M | | |