Show data table
| 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% |
Show data table
| 2000 | 1.53B | 2009 | 2.39B | 2018 | 4.97B |
| 2001 | 1.62B | 2010 | 2.6B | 2019 | 5.2B |
| 2002 | 1.71B | 2011 | 2.71B | 2020 | 4.79B |
| 2003 | 1.74B | 2012 | 2.87B | 2021 | 5.42B |
| 2004 | 1.85B | 2013 | 3.08B | 2022 | 5.94B |
| 2005 | 2.04B | 2014 | 3.41B | 2023 | 6.57B |
| 2006 | 2.15B | 2015 | 3.78B | 2024 | 7.83B |
| 2007 | 2.26B | 2016 | 3.97B | 2025 | 8.32B |
| 2008 | 2.37B | 2017 | 4.53B | 2026 | 8.61B |
Show data table
| 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% |
Show data table
| 2000 | 1.77B | 2009 | 2.59B | 2018 | 4.72B |
| 2001 | 1.9B | 2010 | 2.75B | 2019 | 5.09B |
| 2002 | 1.96B | 2011 | 2.92B | 2020 | 6.04B |
| 2003 | 2.17B | 2012 | 3.12B | 2021 | 6.58B |
| 2004 | 2.06B | 2013 | 3.26B | 2022 | 6.9B |
| 2005 | 2.19B | 2014 | 3.54B | 2023 | 7.49B |
| 2006 | 2.29B | 2015 | 3.87B | 2024 | 8.65B |
| 2007 | 2.38B | 2016 | 3.85B | 2025 | 9.08B |
| 2008 | 2.63B | 2017 | 4.1B | 2026 | 9.36B |