Show data table
| 1980 | 34.4% | 1996 | 41.1% | 2012 | 44.6% |
| 1981 | 35.7% | 1997 | 41.4% | 2013 | 44.7% |
| 1982 | 36.7% | 1998 | 39.8% | 2014 | 45.9% |
| 1983 | 34.9% | 1999 | 46.1% | 2015 | 42.9% |
| 1984 | 36% | 2000 | 45.7% | 2016 | 58.5% |
| 1985 | 34.5% | 2001 | 46.7% | 2017 | 45.1% |
| 1986 | 34.6% | 2002 | 42.8% | 2018 | 44.4% |
| 1987 | 34.7% | 2003 | 45.1% | 2019 | 41.6% |
| 1988 | 38.3% | 2004 | 46.6% | 2020 | 41.6% |
| 1989 | 37.5% | 2005 | 49.2% | 2021 | 40.7% |
| 1990 | 38.3% | 2006 | 50.8% | 2022 | 42.3% |
| 1991 | 41% | 2007 | 49.8% | 2023 | 42.9% |
| 1992 | 41.5% | 2008 | 50.8% | 2024 | 43.4% |
| 1993 | 39.5% | 2009 | 44.8% | 2025 | 42.2% |
| 1994 | 39.1% | 2010 | 41.7% | 2026 | 43.1% |
| 1995 | 40.2% | 2011 | 43.6% | | |
Show data table
| 1980 | 5.82B | 1996 | 210B | 2012 | 834B |
| 1981 | 9.39B | 1997 | 227B | 2013 | 887B |
| 1982 | 15.2B | 1998 | 244B | 2014 | 968B |
| 1983 | 24.9B | 1999 | 304B | 2015 | 1T |
| 1984 | 33.9B | 2000 | 329B | 2016 | 1.49T |
| 1985 | 44.4B | 2001 | 379B | 2017 | 1.21T |
| 1986 | 58.7B | 2002 | 369B | 2018 | 1.28T |
| 1987 | 77B | 2003 | 400B | 2019 | 1.27T |
| 1988 | 105B | 2004 | 456B | 2020 | 1.24T |
| 1989 | 126B | 2005 | 531B | 2021 | 1.36T |
| 1990 | 150B | 2006 | 629B | 2022 | 1.67T |
| 1991 | 173B | 2007 | 700B | 2023 | 1.87T |
| 1992 | 175B | 2008 | 816B | 2024 | 1.99T |
| 1993 | 172B | 2009 | 733B | 2025 | 2.09T |
| 1994 | 181B | 2010 | 709B | 2026 | 2.31T |
| 1995 | 192B | 2011 | 778B | | |
Show data table
| 1980 | 33.1% | 1996 | 42.5% | 2012 | 47.2% |
| 1981 | 34.4% | 1997 | 41.4% | 2013 | 45.6% |
| 1982 | 35% | 1998 | 40.3% | 2014 | 45.3% |
| 1983 | 36.8% | 1999 | 44.8% | 2015 | 43% |
| 1984 | 33.8% | 2000 | 44.3% | 2016 | 45.8% |
| 1985 | 36% | 2001 | 47% | 2017 | 43.8% |
| 1986 | 38.4% | 2002 | 45% | 2018 | 43.4% |
| 1987 | 35.5% | 2003 | 47.3% | 2019 | 43% |
| 1988 | 40.2% | 2004 | 46.2% | 2020 | 50.4% |
| 1989 | 41.7% | 2005 | 44.2% | 2021 | 48.7% |
| 1990 | 41.4% | 2006 | 44.3% | 2022 | 46.2% |
| 1991 | 41.6% | 2007 | 44.2% | 2023 | 45.2% |
| 1992 | 43.3% | 2008 | 62.8% | 2024 | 47.1% |
| 1993 | 43.7% | 2009 | 53.4% | 2025 | 45% |
| 1994 | 43.6% | 2010 | 48.2% | 2026 | 44.2% |
| 1995 | 43% | 2011 | 50% | | |
Show data table
| 1980 | 5.6B | 1996 | 217B | 2012 | 882B |
| 1981 | 9.05B | 1997 | 227B | 2013 | 905B |
| 1982 | 14.5B | 1998 | 247B | 2014 | 956B |
| 1983 | 26.3B | 1999 | 295B | 2015 | 1.01T |
| 1984 | 31.8B | 2000 | 318B | 2016 | 1.17T |
| 1985 | 46.3B | 2001 | 381B | 2017 | 1.17T |
| 1986 | 65.2B | 2002 | 388B | 2018 | 1.25T |
| 1987 | 78.6B | 2003 | 420B | 2019 | 1.32T |
| 1988 | 110B | 2004 | 453B | 2020 | 1.5T |
| 1989 | 140B | 2005 | 478B | 2021 | 1.62T |
| 1990 | 162B | 2006 | 550B | 2022 | 1.82T |
| 1991 | 176B | 2007 | 622B | 2023 | 1.98T |
| 1992 | 183B | 2008 | 1.01T | 2024 | 2.16T |
| 1993 | 190B | 2009 | 872B | 2025 | 2.23T |
| 1994 | 201B | 2010 | 821B | 2026 | 2.38T |
| 1995 | 205B | 2011 | 893B | | |