Show data table
| 1988 | 57.7% | 2001 | 67.2% | 2014 | 85.2% |
| 1989 | 56.6% | 2002 | 67.4% | 2015 | 85.6% |
| 1990 | 56.2% | 2003 | 66.4% | 2016 | 83.4% |
| 1991 | 56.4% | 2004 | 65.9% | 2017 | 79.1% |
| 1992 | 56.3% | 2005 | 69.4% | 2018 | 74.6% |
| 1993 | 61% | 2006 | 68.2% | 2019 | 71% |
| 1994 | 64.1% | 2007 | 65.8% | 2020 | 83.2% |
| 1995 | 68.2% | 2008 | 69.5% | 2021 | 82.4% |
| 1996 | 68.2% | 2009 | 80.8% | 2022 | 78.1% |
| 1997 | 63.4% | 2010 | 83.7% | 2023 | 77.8% |
| 1998 | 69.2% | 2011 | 83.4% | 2024 | 79.2% |
| 1999 | 61.3% | 2012 | 82.9% | 2025 | 80.5% |
| 2000 | 66.1% | 2013 | 82.4% | 2026 | 82% |
Show data table
| 1988 | 68.6B | 2001 | 148B | 2014 | 281B |
| 1989 | 72.1B | 2002 | 152B | 2015 | 293B |
| 1990 | 76.9B | 2003 | 153B | 2016 | 297B |
| 1991 | 82.8B | 2004 | 159B | 2017 | 290B |
| 1992 | 87.3B | 2005 | 175B | 2018 | 286B |
| 1993 | 97.6B | 2006 | 181B | 2019 | 281B |
| 1994 | 108B | 2007 | 186B | 2020 | 316B |
| 1995 | 120B | 2008 | 203B | 2021 | 335B |
| 1996 | 124B | 2009 | 231B | 2022 | 351B |
| 1997 | 119B | 2010 | 246B | 2023 | 372B |
| 1998 | 135B | 2011 | 257B | 2024 | 391B |
| 1999 | 125B | 2012 | 263B | 2025 | 413B |
| 2000 | 140B | 2013 | 265B | 2026 | 434B |
Show data table
| 1999 | 40.5% | 2009 | 57.7% | 2019 | 48.2% |
| 2000 | 44% | 2010 | 61.6% | 2020 | 59.4% |
| 2001 | 43% | 2011 | 61.3% | 2021 | 60.2% |
| 2002 | 44.5% | 2012 | 61.6% | 2022 | 58% |
| 2003 | 44.1% | 2013 | 61.7% | 2023 | 58.9% |
| 2004 | 47.1% | 2014 | 60.3% | 2024 | 60.9% |
| 2005 | 51% | 2015 | 59.2% | 2025 | 62.9% |
| 2006 | 50.7% | 2016 | 57.4% | 2026 | 65% |
| 2007 | 49.7% | 2017 | 56.2% | | |
| 2008 | 50.2% | 2018 | 51% | | |
Show data table
| 1999 | 82.3B | 2009 | 165B | 2019 | 191B |
| 2000 | 93.4B | 2010 | 181B | 2020 | 226B |
| 2001 | 94.4B | 2011 | 189B | 2021 | 244B |
| 2002 | 100B | 2012 | 195B | 2022 | 261B |
| 2003 | 102B | 2013 | 198B | 2023 | 281B |
| 2004 | 113B | 2014 | 199B | 2024 | 301B |
| 2005 | 129B | 2015 | 203B | 2025 | 323B |
| 2006 | 135B | 2016 | 204B | 2026 | 344B |
| 2007 | 140B | 2017 | 206B | | |
| 2008 | 146B | 2018 | 196B | | |