Show data table
| 1998 | 37.4% | 2008 | 34.9% | 2018 | 38.6% |
| 1999 | 36.9% | 2009 | 36.5% | 2019 | 38.6% |
| 2000 | 34.5% | 2010 | 37% | 2020 | 38.8% |
| 2001 | 33% | 2011 | 37.9% | 2021 | 38.9% |
| 2002 | 32.8% | 2012 | 38.7% | 2022 | 39.6% |
| 2003 | 32.8% | 2013 | 38.1% | 2023 | 39.5% |
| 2004 | 33.8% | 2014 | 37.4% | 2024 | 42.2% |
| 2005 | 34.7% | 2015 | 37.1% | 2025 | 41.3% |
| 2006 | 35.1% | 2016 | 37% | 2026 | 41.5% |
| 2007 | 35.4% | 2017 | 37% | | |
Show data table
| 1998 | 2.19B | 2008 | 8.15B | 2018 | 10.9B |
| 1999 | 2.25B | 2009 | 6.74B | 2019 | 11.4B |
| 2000 | 2.31B | 2010 | 6.56B | 2020 | 11.3B |
| 2001 | 2.41B | 2011 | 7.24B | 2021 | 12.5B |
| 2002 | 2.67B | 2012 | 8.18B | 2022 | 14.3B |
| 2003 | 3B | 2013 | 8.36B | 2023 | 15.6B |
| 2004 | 3.59B | 2014 | 8.53B | 2024 | 17.2B |
| 2005 | 4.55B | 2015 | 8.82B | 2025 | 17.8B |
| 2006 | 5.71B | 2016 | 9.07B | 2026 | 18.9B |
| 2007 | 7.61B | 2017 | 9.62B | | |
Show data table
| 1998 | 38.1% | 2008 | 38.2% | 2018 | 39.4% |
| 1999 | 40.4% | 2009 | 43.6% | 2019 | 39% |
| 2000 | 37% | 2010 | 43.6% | 2020 | 42.6% |
| 2001 | 35% | 2011 | 41.2% | 2021 | 44.6% |
| 2002 | 35.4% | 2012 | 38.6% | 2022 | 43.6% |
| 2003 | 34.4% | 2013 | 38.7% | 2023 | 42.9% |
| 2004 | 34.8% | 2014 | 39.2% | 2024 | 44% |
| 2005 | 35.8% | 2015 | 38.7% | 2025 | 45.4% |
| 2006 | 35.5% | 2016 | 37.4% | 2026 | 44.9% |
| 2007 | 34.8% | 2017 | 37.8% | | |
Show data table
| 1998 | 2.23B | 2008 | 8.92B | 2018 | 11.1B |
| 1999 | 2.47B | 2009 | 8.06B | 2019 | 11.5B |
| 2000 | 2.48B | 2010 | 7.72B | 2020 | 12.5B |
| 2001 | 2.56B | 2011 | 7.88B | 2021 | 14.4B |
| 2002 | 2.88B | 2012 | 8.14B | 2022 | 15.7B |
| 2003 | 3.15B | 2013 | 8.49B | 2023 | 17B |
| 2004 | 3.7B | 2014 | 8.93B | 2024 | 17.9B |
| 2005 | 4.69B | 2015 | 9.19B | 2025 | 19.5B |
| 2006 | 5.79B | 2016 | 9.17B | 2026 | 20.4B |
| 2007 | 7.48B | 2017 | 9.84B | | |