데이터 표
| 2004 | 21.4% | 2012 | 23.5% | 2020 | 21.6% |
| 2005 | 22.9% | 2013 | 22.4% | 2021 | 20.7% |
| 2006 | 21.2% | 2014 | 24.8% | 2022 | 22.1% |
| 2007 | 22.5% | 2015 | 23% | 2023 | 21% |
| 2008 | 22.2% | 2016 | 23.3% | 2024 | 21.3% |
| 2009 | 22.4% | 2017 | 22.1% | 2025 | 21% |
| 2010 | 22.1% | 2018 | 23% | 2026 | 21.1% |
| 2011 | 21.3% | 2019 | 22.3% | | |
데이터 표
| 2004 | 2.95억 | 2012 | 2.94억 | 2020 | 2.92억 |
| 2005 | 3.29억 | 2013 | 2.83억 | 2021 | 3.24억 |
| 2006 | 3.22억 | 2014 | 3.12억 | 2022 | 3.84억 |
| 2007 | 3.59억 | 2015 | 2.94억 | 2023 | 3.93억 |
| 2008 | 3.63억 | 2016 | 3.08억 | 2024 | 4.11억 |
| 2009 | 3.31억 | 2017 | 2.99억 | 2025 | 4.18억 |
| 2010 | 3.14억 | 2018 | 3.22억 | 2026 | 4.33억 |
| 2011 | 2.78억 | 2019 | 3.23억 | | |
데이터 표
| 2004 | 19% | 2012 | 30.6% | 2020 | 59.2% |
| 2005 | 19.3% | 2013 | 30.2% | 2021 | 37.1% |
| 2006 | 19.7% | 2014 | 23.7% | 2022 | 21.7% |
| 2007 | 20.7% | 2015 | 26.3% | 2023 | 21.7% |
| 2008 | 22% | 2016 | 23.4% | 2024 | 20.9% |
| 2009 | 24.8% | 2017 | 25.6% | 2025 | 22% |
| 2010 | 24.4% | 2018 | 24.5% | 2026 | 22.7% |
| 2011 | 25.4% | 2019 | 22.4% | | |
데이터 표
| 2004 | 2.62억 | 2012 | 3.82억 | 2020 | 8억 |
| 2005 | 2.78억 | 2013 | 3.81억 | 2021 | 5.82억 |
| 2006 | 2.99억 | 2014 | 2.99억 | 2022 | 3.77억 |
| 2007 | 3.3억 | 2015 | 3.36억 | 2023 | 4.06억 |
| 2008 | 3.6억 | 2016 | 3.11억 | 2024 | 4.03억 |
| 2009 | 3.68억 | 2017 | 3.46억 | 2025 | 4.38억 |
| 2010 | 3.46억 | 2018 | 3.44억 | 2026 | 4.66억 |
| 2011 | 3.31억 | 2019 | 3.24억 | | |