데이터 표
| 1990 | 17.2% | 2003 | 21.3% | 2016 | 27% |
| 1991 | 18.6% | 2004 | 23.1% | 2017 | 26.5% |
| 1992 | 20.2% | 2005 | 23.6% | 2018 | 26.4% |
| 1993 | 19.3% | 2006 | 23% | 2019 | 26% |
| 1994 | 18.1% | 2007 | 24.2% | 2020 | 23.8% |
| 1995 | 17% | 2008 | 26.1% | 2021 | 25.6% |
| 1996 | 18.8% | 2009 | 23.5% | 2022 | 25.6% |
| 1997 | 19.5% | 2010 | 23.1% | 2023 | 25.3% |
| 1998 | 22.3% | 2011 | 23% | 2024 | 24.5% |
| 1999 | 24.7% | 2012 | 22.9% | 2025 | 24.2% |
| 2000 | 23.6% | 2013 | 22.5% | 2026 | 24% |
| 2001 | 21.9% | 2014 | 23.6% | | |
| 2002 | 21.8% | 2015 | 25.2% | | |
데이터 표
| 1990 | 29.5억 | 2003 | 305억 | 2016 | 1,338억 |
| 1991 | 41.5억 | 2004 | 373억 | 2017 | 1,437억 |
| 1992 | 51.8억 | 2005 | 433억 | 2018 | 1,516억 |
| 1993 | 59.9억 | 2006 | 475억 | 2019 | 1,587억 |
| 1994 | 71.3억 | 2007 | 565억 | 2020 | 1,369억 |
| 1995 | 87억 | 2008 | 686억 | 2021 | 1,733억 |
| 1996 | 116억 | 2009 | 647억 | 2022 | 1,971억 |
| 1997 | 147억 | 2010 | 691억 | 2023 | 2,135억 |
| 1998 | 192억 | 2011 | 770억 | 2024 | 2,258억 |
| 1999 | 227억 | 2012 | 827억 | 2025 | 2,491억 |
| 2000 | 252억 | 2013 | 847억 | 2026 | 2,667억 |
| 2001 | 260억 | 2014 | 978억 | | |
| 2002 | 282억 | 2015 | 1,162억 | | |
데이터 표
| 1990 | 19.4% | 2003 | 26.4% | 2016 | 27.4% |
| 1991 | 20.8% | 2004 | 25.5% | 2017 | 26.9% |
| 1992 | 21.6% | 2005 | 23.6% | 2018 | 26.2% |
| 1993 | 24.5% | 2006 | 24.4% | 2019 | 25.9% |
| 1994 | 19% | 2007 | 24.4% | 2020 | 28.4% |
| 1995 | 17.2% | 2008 | 26.4% | 2021 | 28.8% |
| 1996 | 18.7% | 2009 | 28.4% | 2022 | 24% |
| 1997 | 19.4% | 2010 | 26.5% | 2023 | 27.2% |
| 1998 | 19.4% | 2011 | 25.9% | 2024 | 25.7% |
| 1999 | 23.3% | 2012 | 26.4% | 2025 | 24.9% |
| 2000 | 22.1% | 2013 | 28% | 2026 | 25.5% |
| 2001 | 25.1% | 2014 | 26.4% | | |
| 2002 | 26.8% | 2015 | 26% | | |
데이터 표
| 1990 | 33.2억 | 2003 | 378억 | 2016 | 1,358억 |
| 1991 | 46.3억 | 2004 | 413억 | 2017 | 1,459억 |
| 1992 | 55.6억 | 2005 | 434억 | 2018 | 1,505억 |
| 1993 | 76.1억 | 2006 | 503억 | 2019 | 1,582억 |
| 1994 | 75.1억 | 2007 | 571억 | 2020 | 1,632억 |
| 1995 | 88.3억 | 2008 | 693억 | 2021 | 1,947억 |
| 1996 | 115억 | 2009 | 781억 | 2022 | 1,850억 |
| 1997 | 146억 | 2010 | 792억 | 2023 | 2,301억 |
| 1998 | 167억 | 2011 | 868억 | 2024 | 2,361억 |
| 1999 | 215억 | 2012 | 952억 | 2025 | 2,568억 |
| 2000 | 236억 | 2013 | 1,053억 | 2026 | 2,829억 |
| 2001 | 297억 | 2014 | 1,094억 | | |
| 2002 | 346억 | 2015 | 1,198억 | | |