Show data table
| 1988 | 31.1% | 2001 | 35.5% | 2014 | 33.7% |
| 1989 | 30.5% | 2002 | 35% | 2015 | 34.3% |
| 1990 | 30.2% | 2003 | 35.9% | 2016 | 34.7% |
| 1991 | 30.2% | 2004 | 36.1% | 2017 | 34.9% |
| 1992 | 29.3% | 2005 | 36.2% | 2018 | 35.5% |
| 1993 | 29.4% | 2006 | 36.2% | 2019 | 34.4% |
| 1994 | 29.9% | 2007 | 35.7% | 2020 | 35.6% |
| 1995 | 31% | 2008 | 33.9% | 2021 | 35.3% |
| 1996 | 32% | 2009 | 33.1% | 2022 | 35.2% |
| 1997 | 32.3% | 2010 | 31.7% | 2023 | 36.2% |
| 1998 | 34.3% | 2011 | 31.7% | 2024 | 36.5% |
| 1999 | 36.8% | 2012 | 32.9% | 2025 | 36.7% |
| 2000 | 36.4% | 2013 | 33.4% | 2026 | 36.6% |
Show data table
| 1988 | 108B | 2001 | 260B | 2014 | 546B |
| 1989 | 119B | 2002 | 275B | 2015 | 565B |
| 1990 | 125B | 2003 | 299B | 2016 | 592B |
| 1991 | 126B | 2004 | 323B | 2017 | 631B |
| 1992 | 127B | 2005 | 350B | 2018 | 675B |
| 1993 | 134B | 2006 | 378B | 2019 | 688B |
| 1994 | 145B | 2007 | 405B | 2020 | 705B |
| 1995 | 159B | 2008 | 420B | 2021 | 780B |
| 1996 | 174B | 2009 | 420B | 2022 | 878B |
| 1997 | 185B | 2010 | 434B | 2023 | 951B |
| 1998 | 208B | 2011 | 467B | 2024 | 994B |
| 1999 | 235B | 2012 | 500B | 2025 | 1.05T |
| 2000 | 251B | 2013 | 527B | 2026 | 1.1T |
Show data table
| 1988 | 30.6% | 2001 | 35.6% | 2014 | 36.6% |
| 1989 | 29.6% | 2002 | 34.9% | 2015 | 37.1% |
| 1990 | 30.4% | 2003 | 34.9% | 2016 | 37.1% |
| 1991 | 33% | 2004 | 34.8% | 2017 | 36.6% |
| 1992 | 34% | 2005 | 34.5% | 2018 | 36.7% |
| 1993 | 34.1% | 2006 | 34.5% | 2019 | 38.8% |
| 1994 | 33.7% | 2007 | 34.2% | 2020 | 44.3% |
| 1995 | 33.6% | 2008 | 35% | 2021 | 41.7% |
| 1996 | 33.5% | 2009 | 37.6% | 2022 | 37.4% |
| 1997 | 32.8% | 2010 | 36.8% | 2023 | 37.4% |
| 1998 | 34.6% | 2011 | 36.2% | 2024 | 38.7% |
| 1999 | 36.2% | 2012 | 36.4% | 2025 | 39.5% |
| 2000 | 35.1% | 2013 | 36.2% | 2026 | 39.1% |
Show data table
| 1988 | 106B | 2001 | 260B | 2014 | 593B |
| 1989 | 115B | 2002 | 273B | 2015 | 611B |
| 1990 | 126B | 2003 | 290B | 2016 | 633B |
| 1991 | 138B | 2004 | 312B | 2017 | 662B |
| 1992 | 147B | 2005 | 333B | 2018 | 698B |
| 1993 | 155B | 2006 | 359B | 2019 | 776B |
| 1994 | 163B | 2007 | 389B | 2020 | 877B |
| 1995 | 172B | 2008 | 433B | 2021 | 920B |
| 1996 | 182B | 2009 | 478B | 2022 | 933B |
| 1997 | 188B | 2010 | 504B | 2023 | 984B |
| 1998 | 210B | 2011 | 533B | 2024 | 1.06T |
| 1999 | 231B | 2012 | 553B | 2025 | 1.13T |
| 2000 | 242B | 2013 | 571B | 2026 | 1.18T |