Show data table
| 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% | | |
Show data table
| 2004 | 295M | 2012 | 294M | 2020 | 292M |
| 2005 | 329M | 2013 | 283M | 2021 | 324M |
| 2006 | 322M | 2014 | 312M | 2022 | 384M |
| 2007 | 359M | 2015 | 294M | 2023 | 393M |
| 2008 | 363M | 2016 | 308M | 2024 | 411M |
| 2009 | 331M | 2017 | 299M | 2025 | 418M |
| 2010 | 314M | 2018 | 322M | 2026 | 433M |
| 2011 | 278M | 2019 | 323M | | |
Show data table
| 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% | | |
Show data table
| 2004 | 262M | 2012 | 382M | 2020 | 800M |
| 2005 | 278M | 2013 | 381M | 2021 | 582M |
| 2006 | 299M | 2014 | 299M | 2022 | 377M |
| 2007 | 330M | 2015 | 336M | 2023 | 406M |
| 2008 | 360M | 2016 | 311M | 2024 | 403M |
| 2009 | 368M | 2017 | 346M | 2025 | 438M |
| 2010 | 346M | 2018 | 344M | 2026 | 466M |
| 2011 | 331M | 2019 | 324M | | |