Show data table
| 1989 | 21.1% | 2002 | 24.8% | 2015 | 23.5% |
| 1990 | 26.3% | 2003 | 27.4% | 2016 | 24.3% |
| 1991 | 22.9% | 2004 | 27.7% | 2017 | 21% |
| 1992 | 20.1% | 2005 | 35.5% | 2018 | 23% |
| 1993 | 21.5% | 2006 | 42.6% | 2019 | 24.5% |
| 1994 | 20.1% | 2007 | 37.6% | 2020 | 20% |
| 1995 | 21.2% | 2008 | 48.1% | 2021 | 22.6% |
| 1996 | 24.9% | 2009 | 29.2% | 2022 | 31.8% |
| 1997 | 25.9% | 2010 | 38.5% | 2023 | 26.5% |
| 1998 | 19.9% | 2011 | 43.9% | 2024 | 25.3% |
| 1999 | 24% | 2012 | 37.9% | 2025 | 24.2% |
| 2000 | 23.7% | 2013 | 39.5% | 2026 | 25.2% |
| 2001 | 28.4% | 2014 | 37.8% | | |
Show data table
| 1989 | 167B | 2002 | 575B | 2015 | 1.65T |
| 1990 | 209B | 2003 | 614B | 2016 | 1.57T |
| 1991 | 196B | 2004 | 746B | 2017 | 1.45T |
| 1992 | 174B | 2005 | 1.25T | 2018 | 1.89T |
| 1993 | 183B | 2006 | 1.8T | 2019 | 2T |
| 1994 | 231B | 2007 | 1.58T | 2020 | 1.32T |
| 1995 | 260B | 2008 | 2.5T | 2021 | 1.67T |
| 1996 | 362B | 2009 | 1.33T | 2022 | 2.76T |
| 1997 | 388B | 2010 | 2.51T | 2023 | 2.28T |
| 1998 | 263B | 2011 | 3.24T | 2024 | 2.26T |
| 1999 | 391B | 2012 | 3.42T | 2025 | 2.19T |
| 2000 | 611B | 2013 | 3.51T | 2026 | 2.38T |
| 2001 | 632B | 2014 | 3.35T | | |
Show data table
| 1989 | 20.3% | 2002 | 32.1% | 2015 | 41.3% |
| 1990 | 30.4% | 2003 | 27% | 2016 | 38.8% |
| 1991 | 34.1% | 2004 | 24.4% | 2017 | 26.6% |
| 1992 | 32.8% | 2005 | 22.1% | 2018 | 17.8% |
| 1993 | 32.8% | 2006 | 26.6% | 2019 | 20.2% |
| 1994 | 30.7% | 2007 | 28.6% | 2020 | 21.1% |
| 1995 | 27.6% | 2008 | 24.2% | 2021 | 20.9% |
| 1996 | 15.7% | 2009 | 24.4% | 2022 | 22.8% |
| 1997 | 22.2% | 2010 | 23% | 2023 | 20.7% |
| 1998 | 25.1% | 2011 | 27.9% | 2024 | 21.7% |
| 1999 | 28.8% | 2012 | 30.7% | 2025 | 23.9% |
| 2000 | 22.6% | 2013 | 42.4% | 2026 | 24.8% |
| 2001 | 29.1% | 2014 | 48.6% | | |
Show data table
| 1989 | 160B | 2002 | 746B | 2015 | 2.9T |
| 1990 | 241B | 2003 | 605B | 2016 | 2.51T |
| 1991 | 292B | 2004 | 656B | 2017 | 1.83T |
| 1992 | 285B | 2005 | 776B | 2018 | 1.46T |
| 1993 | 279B | 2006 | 1.12T | 2019 | 1.65T |
| 1994 | 353B | 2007 | 1.2T | 2020 | 1.39T |
| 1995 | 338B | 2008 | 1.26T | 2021 | 1.55T |
| 1996 | 228B | 2009 | 1.12T | 2022 | 1.99T |
| 1997 | 333B | 2010 | 1.5T | 2023 | 1.78T |
| 1998 | 331B | 2011 | 2.06T | 2024 | 1.94T |
| 1999 | 468B | 2012 | 2.77T | 2025 | 2.17T |
| 2000 | 584B | 2013 | 3.76T | 2026 | 2.35T |
| 2001 | 648B | 2014 | 4.3T | | |