데이터 표
| 1994 | 30.9% | 2005 | 20.9% | 2016 | 19.5% |
| 1995 | 31.9% | 2006 | 23% | 2017 | 19.3% |
| 1996 | 27.1% | 2007 | 25.4% | 2018 | 18.9% |
| 1997 | 26.2% | 2008 | 23.4% | 2019 | 17.7% |
| 1998 | 24.7% | 2009 | 22% | 2020 | 17.3% |
| 1999 | 24.5% | 2010 | 22.7% | 2021 | 17.3% |
| 2000 | 26.9% | 2011 | 21.7% | 2022 | 17.4% |
| 2001 | 24.7% | 2012 | 21.7% | 2023 | 17.5% |
| 2002 | 24.1% | 2013 | 21.2% | 2024 | 16.9% |
| 2003 | 23.3% | 2014 | 19.9% | 2025 | 17.3% |
| 2004 | 19.9% | 2015 | 19.2% | 2026 | 18% |
데이터 표
| 1994 | 23.6억 | 2005 | 34.7억 | 2016 | 116억 |
| 1995 | 24.9억 | 2006 | 42.8억 | 2017 | 124억 |
| 1996 | 24.9억 | 2007 | 55.1억 | 2018 | 128억 |
| 1997 | 26.3억 | 2008 | 60.2억 | 2019 | 124억 |
| 1998 | 27.2억 | 2009 | 61.3억 | 2020 | 98.9억 |
| 1999 | 28.6억 | 2010 | 68.7억 | 2021 | 117억 |
| 2000 | 32.2억 | 2011 | 77.6억 | 2022 | 133억 |
| 2001 | 30.3억 | 2012 | 90.1억 | 2023 | 147억 |
| 2002 | 30.8억 | 2013 | 99.5억 | 2024 | 146억 |
| 2003 | 31.7억 | 2014 | 102억 | 2025 | 156억 |
| 2004 | 30억 | 2015 | 107억 | 2026 | 171억 |
데이터 표
| 1994 | 28.5% | 2005 | 23.2% | 2016 | 21.3% |
| 1995 | 29.3% | 2006 | 22.4% | 2017 | 21.1% |
| 1996 | 24.3% | 2007 | 22.2% | 2018 | 21.7% |
| 1997 | 24.8% | 2008 | 23% | 2019 | 20.5% |
| 1998 | 25.9% | 2009 | 22.9% | 2020 | 27% |
| 1999 | 25.2% | 2010 | 24.4% | 2021 | 23.7% |
| 2000 | 24.7% | 2011 | 23.7% | 2022 | 21.3% |
| 2001 | 25.2% | 2012 | 23% | 2023 | 21.4% |
| 2002 | 25.1% | 2013 | 23.6% | 2024 | 23.1% |
| 2003 | 25.7% | 2014 | 22.9% | 2025 | 20.9% |
| 2004 | 24.4% | 2015 | 21.4% | 2026 | 21.4% |
데이터 표
| 1994 | 21.7억 | 2005 | 38.6억 | 2016 | 127억 |
| 1995 | 22.9억 | 2006 | 41.8억 | 2017 | 136억 |
| 1996 | 22.3억 | 2007 | 48.2억 | 2018 | 146억 |
| 1997 | 24.9억 | 2008 | 59.2억 | 2019 | 143억 |
| 1998 | 28.6억 | 2009 | 63.8억 | 2020 | 154억 |
| 1999 | 29.4억 | 2010 | 73.9억 | 2021 | 160억 |
| 2000 | 29.5억 | 2011 | 84.7억 | 2022 | 163억 |
| 2001 | 30.9억 | 2012 | 95.6억 | 2023 | 179억 |
| 2002 | 32.1억 | 2013 | 111억 | 2024 | 200억 |
| 2003 | 34.9억 | 2014 | 118억 | 2025 | 189억 |
| 2004 | 36.9억 | 2015 | 119억 | 2026 | 203억 |