데이터 표
| 1998 | 31.7% | 2008 | 36.2% | 2018 | 34.6% |
| 1999 | 36.3% | 2009 | 32.9% | 2019 | 35.1% |
| 2000 | 36.5% | 2010 | 30.8% | 2020 | 34.7% |
| 2001 | 35.9% | 2011 | 30.1% | 2021 | 35.7% |
| 2002 | 34.5% | 2012 | 32.1% | 2022 | 36.8% |
| 2003 | 35.8% | 2013 | 33.7% | 2023 | 34.5% |
| 2004 | 36.2% | 2014 | 33.4% | 2024 | 33.3% |
| 2005 | 36.2% | 2015 | 34.6% | 2025 | 35.9% |
| 2006 | 35.7% | 2016 | 34.3% | 2026 | 34.5% |
| 2007 | 36.2% | 2017 | 32.9% | | |
데이터 표
| 1998 | 42.9억 | 2008 | 135억 | 2018 | 194억 |
| 1999 | 46.5억 | 2009 | 123억 | 2019 | 215억 |
| 2000 | 52.5억 | 2010 | 118억 | 2020 | 215억 |
| 2001 | 56.9억 | 2011 | 125억 | 2021 | 254억 |
| 2002 | 60억 | 2012 | 136억 | 2022 | 316억 |
| 2003 | 67억 | 2013 | 142억 | 2023 | 326억 |
| 2004 | 76.3억 | 2014 | 144억 | 2024 | 349억 |
| 2005 | 87.1억 | 2015 | 158억 | 2025 | 416억 |
| 2006 | 97.9억 | 2016 | 167억 | 2026 | 434억 |
| 2007 | 118억 | 2017 | 172억 | | |
데이터 표
| 1998 | 30.6% | 2008 | 33.5% | 2018 | 34.4% |
| 1999 | 36.2% | 2009 | 33.8% | 2019 | 36.1% |
| 2000 | 37.1% | 2010 | 34.6% | 2020 | 37.7% |
| 2001 | 36.5% | 2011 | 32% | 2021 | 38.5% |
| 2002 | 35.1% | 2012 | 32.5% | 2022 | 37.6% |
| 2003 | 35.8% | 2013 | 35.5% | 2023 | 37.5% |
| 2004 | 34.6% | 2014 | 37.1% | 2024 | 36.3% |
| 2005 | 34% | 2015 | 37.3% | 2025 | 38.9% |
| 2006 | 32.5% | 2016 | 32.7% | 2026 | 37.8% |
| 2007 | 33.1% | 2017 | 32% | | |
데이터 표
| 1998 | 41.4억 | 2008 | 125억 | 2018 | 193억 |
| 1999 | 46.3억 | 2009 | 126억 | 2019 | 221억 |
| 2000 | 53.4억 | 2010 | 132억 | 2020 | 233억 |
| 2001 | 57.8억 | 2011 | 133억 | 2021 | 274억 |
| 2002 | 61.1억 | 2012 | 137억 | 2022 | 323억 |
| 2003 | 67억 | 2013 | 149억 | 2023 | 355억 |
| 2004 | 72.9억 | 2014 | 160억 | 2024 | 380억 |
| 2005 | 81.8억 | 2015 | 171억 | 2025 | 451억 |
| 2006 | 89.1억 | 2016 | 160억 | 2026 | 475억 |
| 2007 | 108억 | 2017 | 168억 | | |