데이터 표
| 1998 | 12% | 2008 | 22.1% | 2018 | 28.2% |
| 1999 | 13.5% | 2009 | 23.4% | 2019 | 26.8% |
| 2000 | 13.6% | 2010 | 23.2% | 2020 | 24.8% |
| 2001 | 15.2% | 2011 | 24.9% | 2021 | 27% |
| 2002 | 16.7% | 2012 | 25.1% | 2022 | 27.1% |
| 2003 | 17.3% | 2013 | 26.9% | 2023 | 27.1% |
| 2004 | 17.9% | 2014 | 28.4% | 2024 | 27.5% |
| 2005 | 20.1% | 2015 | 29.9% | 2025 | 27.5% |
| 2006 | 23.6% | 2016 | 29.7% | 2026 | 26.9% |
| 2007 | 22.5% | 2017 | 28.1% | | |
데이터 표
| 1998 | 1.24억 | 2008 | 39억 | 2018 | 200억 |
| 1999 | 1.82억 | 2009 | 48.3억 | 2019 | 212억 |
| 2000 | 2.46억 | 2010 | 57.2억 | 2020 | 208억 |
| 2001 | 3.82억 | 2011 | 74.8억 | 2021 | 273억 |
| 2002 | 5.6억 | 2012 | 90.9억 | 2022 | 321억 |
| 2003 | 8.24억 | 2013 | 109억 | 2023 | 360억 |
| 2004 | 11억 | 2014 | 129억 | 2024 | 429억 |
| 2005 | 14.5억 | 2015 | 145억 | 2025 | 483억 |
| 2006 | 21.9억 | 2016 | 163억 | 2026 | 525억 |
| 2007 | 28.7억 | 2017 | 181억 | | |
데이터 표
| 1998 | 17.1% | 2008 | 20.2% | 2018 | 30.9% |
| 1999 | 17.5% | 2009 | 23.6% | 2019 | 28.8% |
| 2000 | 18.1% | 2010 | 25.9% | 2020 | 29.2% |
| 2001 | 17.3% | 2011 | 24.3% | 2021 | 27.6% |
| 2002 | 19.1% | 2012 | 24.7% | 2022 | 27.4% |
| 2003 | 19.1% | 2013 | 27.7% | 2023 | 28% |
| 2004 | 20.2% | 2014 | 27.5% | 2024 | 27.2% |
| 2005 | 22.9% | 2015 | 31.9% | 2025 | 29.3% |
| 2006 | 21.6% | 2016 | 32.7% | 2026 | 29.4% |
| 2007 | 20.3% | 2017 | 33.8% | | |
데이터 표
| 1998 | 1.76억 | 2008 | 35.5억 | 2018 | 219억 |
| 1999 | 2.36억 | 2009 | 48.7억 | 2019 | 228억 |
| 2000 | 3.27억 | 2010 | 63.9억 | 2020 | 245억 |
| 2001 | 4.35억 | 2011 | 73억 | 2021 | 279억 |
| 2002 | 6.4억 | 2012 | 89.4억 | 2022 | 324억 |
| 2003 | 9.07억 | 2013 | 112억 | 2023 | 372억 |
| 2004 | 12.5억 | 2014 | 125억 | 2024 | 424억 |
| 2005 | 16.5억 | 2015 | 154억 | 2025 | 514억 |
| 2006 | 20.1억 | 2016 | 179억 | 2026 | 574억 |
| 2007 | 26억 | 2017 | 218억 | | |