Show data table
| 1990 | 32.8% | 2003 | 56.2% | 2016 | 40.3% |
| 1991 | 34.6% | 2004 | 57.1% | 2017 | 41.1% |
| 1992 | 38.9% | 2005 | 54.1% | 2018 | 39% |
| 1993 | 43.7% | 2006 | 47.8% | 2019 | 38.8% |
| 1994 | 46.4% | 2007 | 44% | 2020 | 42.4% |
| 1995 | 49.3% | 2008 | 44.2% | 2021 | 39.7% |
| 1996 | 50.6% | 2009 | 42.4% | 2022 | 35.9% |
| 1997 | 52.9% | 2010 | 40.7% | 2023 | 37.3% |
| 1998 | 55.3% | 2011 | 41.2% | 2024 | 40.5% |
| 1999 | 52% | 2012 | 41.9% | 2025 | 39.4% |
| 2000 | 51.7% | 2013 | 41.2% | 2026 | 38.5% |
| 2001 | 50.5% | 2014 | 41.2% | | |
| 2002 | 56.9% | 2015 | 41.4% | | |
Show data table
| 1990 | 123B | 2003 | 277B | 2016 | 277B |
| 1991 | 135B | 2004 | 290B | 2017 | 286B |
| 1992 | 155B | 2005 | 286B | 2018 | 282B |
| 1993 | 178B | 2006 | 269B | 2019 | 284B |
| 1994 | 194B | 2007 | 264B | 2020 | 301B |
| 1995 | 209B | 2008 | 275B | 2021 | 305B |
| 1996 | 216B | 2009 | 260B | 2022 | 294B |
| 1997 | 230B | 2010 | 259B | 2023 | 311B |
| 1998 | 246B | 2011 | 266B | 2024 | 346B |
| 1999 | 236B | 2012 | 274B | 2025 | 342B |
| 2000 | 246B | 2013 | 275B | 2026 | 340B |
| 2001 | 247B | 2014 | 280B | | |
| 2002 | 278B | 2015 | 282B | | |
Show data table
| 1990 | 12.9% | 2003 | 38.3% | 2016 | 21.3% |
| 1991 | 14% | 2004 | 44% | 2017 | 20.4% |
| 1992 | 17.5% | 2005 | 41% | 2018 | 18.4% |
| 1993 | 20.1% | 2006 | 35.9% | 2019 | 16.9% |
| 1994 | 22.6% | 2007 | 28.9% | 2020 | 20% |
| 1995 | 24.5% | 2008 | 24.5% | 2021 | 19.5% |
| 1996 | 26.5% | 2009 | 22.9% | 2022 | 15.7% |
| 1997 | 28.4% | 2010 | 21.5% | 2023 | 17% |
| 1998 | 29.5% | 2011 | 21.7% | 2024 | 20.3% |
| 1999 | 33.3% | 2012 | 21.3% | 2025 | 19.2% |
| 2000 | 33.5% | 2013 | 20.3% | 2026 | 18.3% |
| 2001 | 34.3% | 2014 | 20.4% | | |
| 2002 | 38.1% | 2015 | 20.6% | | |
Show data table
| 1990 | 48.2B | 2003 | 189B | 2016 | 147B |
| 1991 | 54.7B | 2004 | 224B | 2017 | 142B |
| 1992 | 69.8B | 2005 | 217B | 2018 | 133B |
| 1993 | 82.2B | 2006 | 202B | 2019 | 124B |
| 1994 | 94.6B | 2007 | 173B | 2020 | 142B |
| 1995 | 104B | 2008 | 153B | 2021 | 150B |
| 1996 | 113B | 2009 | 141B | 2022 | 128B |
| 1997 | 123B | 2010 | 137B | 2023 | 142B |
| 1998 | 131B | 2011 | 140B | 2024 | 173B |
| 1999 | 151B | 2012 | 139B | 2025 | 166B |
| 2000 | 160B | 2013 | 135B | 2026 | 161B |
| 2001 | 168B | 2014 | 138B | | |
| 2002 | 186B | 2015 | 140B | | |