데이터 표
| 2000 | 37.1% | 2009 | 38% | 2018 | 36.3% |
| 2001 | 37.9% | 2010 | 37.8% | 2019 | 35.6% |
| 2002 | 38% | 2011 | 38.5% | 2020 | 33.4% |
| 2003 | 36.5% | 2012 | 38.4% | 2021 | 32.5% |
| 2004 | 37.7% | 2013 | 37.9% | 2022 | 33% |
| 2005 | 39.7% | 2014 | 38.1% | 2023 | 31.4% |
| 2006 | 40% | 2015 | 37% | 2024 | 33.9% |
| 2007 | 39.1% | 2016 | 36.6% | 2025 | 33.9% |
| 2008 | 38.1% | 2017 | 36.1% | 2026 | 33.1% |
데이터 표
| 2000 | 15.3억 | 2009 | 23.9억 | 2018 | 49.7억 |
| 2001 | 16.2억 | 2010 | 26억 | 2019 | 52억 |
| 2002 | 17.1억 | 2011 | 27.1억 | 2020 | 47.9억 |
| 2003 | 17.4억 | 2012 | 28.7억 | 2021 | 54.2억 |
| 2004 | 18.5억 | 2013 | 30.8억 | 2022 | 59.4억 |
| 2005 | 20.4억 | 2014 | 34.1억 | 2023 | 65.7억 |
| 2006 | 21.5억 | 2015 | 37.8억 | 2024 | 78.3억 |
| 2007 | 22.6억 | 2016 | 39.7억 | 2025 | 83.2억 |
| 2008 | 23.7억 | 2017 | 45.3억 | 2026 | 86.1억 |
데이터 표
| 2000 | 42.9% | 2009 | 41.1% | 2018 | 34.5% |
| 2001 | 44.4% | 2010 | 40.1% | 2019 | 34.9% |
| 2002 | 43.6% | 2011 | 41.5% | 2020 | 42.1% |
| 2003 | 45.6% | 2012 | 41.7% | 2021 | 39.5% |
| 2004 | 42% | 2013 | 40.1% | 2022 | 38.4% |
| 2005 | 42.5% | 2014 | 39.6% | 2023 | 35.8% |
| 2006 | 42.5% | 2015 | 37.8% | 2024 | 37.4% |
| 2007 | 41.2% | 2016 | 35.5% | 2025 | 37% |
| 2008 | 42.1% | 2017 | 32.7% | 2026 | 35.9% |
데이터 표
| 2000 | 17.7억 | 2009 | 25.9억 | 2018 | 47.2억 |
| 2001 | 19억 | 2010 | 27.5억 | 2019 | 50.9억 |
| 2002 | 19.6억 | 2011 | 29.2억 | 2020 | 60.4억 |
| 2003 | 21.7억 | 2012 | 31.2억 | 2021 | 65.8억 |
| 2004 | 20.6억 | 2013 | 32.6억 | 2022 | 69억 |
| 2005 | 21.9억 | 2014 | 35.4억 | 2023 | 74.9억 |
| 2006 | 22.9억 | 2015 | 38.7억 | 2024 | 86.5억 |
| 2007 | 23.8억 | 2016 | 38.5억 | 2025 | 90.8억 |
| 2008 | 26.3억 | 2017 | 41억 | 2026 | 93.6억 |