Show data table
| 1990 | 19% | 2002 | 13.9% | 2014 | 11.2% |
| 1991 | 18.4% | 2003 | 13.2% | 2015 | 12.6% |
| 1992 | 18.1% | 2004 | 12.9% | 2016 | 13.2% |
| 1993 | 17.4% | 2005 | 14.2% | 2017 | 12.8% |
| 1994 | 16.7% | 2006 | 14.6% | 2018 | 12.6% |
| 1995 | 17.7% | 2007 | 14.1% | 2019 | 11.9% |
| 1996 | 16.2% | 2008 | 13.2% | 2020 | 8.8% |
| 1997 | 15.7% | 2009 | 12.7% | 2021 | 8.3% |
| 1998 | 14.6% | 2010 | 12.6% | 2022 | 8.4% |
| 1999 | 14.9% | 2011 | 13.1% | 2023 | 11.2% |
| 2000 | 14% | 2012 | 11.9% | 2024 | 13.7% |
| 2001 | 13.9% | 2013 | 11.6% | | |
Show data table
| 1990 | 74.7B | 2002 | 269B | 2014 | 1.2T |
| 1991 | 84B | 2003 | 284B | 2015 | 1.46T |
| 1992 | 94.1B | 2004 | 320B | 2016 | 1.69T |
| 1993 | 106B | 2005 | 412B | 2017 | 1.84T |
| 1994 | 118B | 2006 | 508B | 2018 | 1.93T |
| 1995 | 144B | 2007 | 596B | 2019 | 1.9T |
| 1996 | 152B | 2008 | 686B | 2020 | 1.37T |
| 1997 | 171B | 2009 | 726B | 2021 | 1.46T |
| 1998 | 182B | 2010 | 834B | 2022 | 2.01T |
| 1999 | 202B | 2011 | 983B | 2023 | 3.07T |
| 2000 | 215B | 2012 | 1.07T | 2024 | 4.09T |
| 2001 | 240B | 2013 | 1.15T | | |
Show data table
| 1990 | 25.4% | 2002 | 20.8% | 2014 | 17.2% |
| 1991 | 26.4% | 2003 | 19.3% | 2015 | 19.3% |
| 1992 | 23% | 2004 | 19.3% | 2016 | 18.2% |
| 1993 | 23.2% | 2005 | 20.1% | 2017 | 17.9% |
| 1994 | 24.1% | 2006 | 20.5% | 2018 | 17.5% |
| 1995 | 24.8% | 2007 | 19.9% | 2019 | 19.5% |
| 1996 | 23.1% | 2008 | 19.1% | 2020 | 22.1% |
| 1997 | 21.4% | 2009 | 21% | 2021 | 20% |
| 1998 | 21.4% | 2010 | 19.3% | 2022 | 18.6% |
| 1999 | 20.5% | 2011 | 19.1% | 2023 | 19.5% |
| 2000 | 21.7% | 2012 | 17.3% | 2024 | 19.1% |
| 2001 | 22.4% | 2013 | 16.6% | | |
Show data table
| 1990 | 99.8B | 2002 | 403B | 2014 | 1.85T |
| 1991 | 120B | 2003 | 417B | 2015 | 2.23T |
| 1992 | 120B | 2004 | 477B | 2016 | 2.33T |
| 1993 | 142B | 2005 | 585B | 2017 | 2.57T |
| 1994 | 171B | 2006 | 713B | 2018 | 2.69T |
| 1995 | 202B | 2007 | 841B | 2019 | 3.1T |
| 1996 | 217B | 2008 | 996B | 2020 | 3.46T |
| 1997 | 233B | 2009 | 1.2T | 2021 | 3.52T |
| 1998 | 266B | 2010 | 1.28T | 2022 | 4.47T |
| 1999 | 278B | 2011 | 1.43T | 2023 | 5.36T |
| 2000 | 334B | 2012 | 1.56T | 2024 | 5.71T |
| 2001 | 386B | 2013 | 1.65T | | |