Show data table
| 1980 | 10.9% | 1996 | 55.4% | 2012 | 57.9% |
| 1981 | 11.5% | 1997 | 52.2% | 2013 | 60.8% |
| 1982 | 13.9% | 1998 | 46.8% | 2014 | 64.8% |
| 1983 | 15.4% | 1999 | 44% | 2015 | 68.8% |
| 1984 | 15.2% | 2000 | 42.4% | 2016 | 68.6% |
| 1985 | 15.8% | 2001 | 40.9% | 2017 | 66.6% |
| 1986 | 16.4% | 2002 | 40.1% | 2018 | 65.3% |
| 1987 | 17.6% | 2003 | 42.7% | 2019 | 65.3% |
| 1988 | 16.5% | 2004 | 42.6% | 2020 | 75.3% |
| 1989 | 14.3% | 2005 | 39.9% | 2021 | 73.1% |
| 1990 | 13.9% | 2006 | 38% | 2022 | 74% |
| 1991 | 21.9% | 2007 | 33.9% | 2023 | 77% |
| 1992 | 39.3% | 2008 | 32.6% | 2024 | 82.4% |
| 1993 | 54.2% | 2009 | 41.5% | 2025 | 89.3% |
| 1994 | 56.2% | 2010 | 50.1% | 2026 | 93.1% |
| 1995 | 55.2% | 2011 | 52% | | |
Show data table
| 1980 | 3.67B | 1996 | 56.5B | 2012 | 116B |
| 1981 | 4.4B | 1997 | 57.9B | 2013 | 124B |
| 1982 | 5.93B | 1998 | 56.4B | 2014 | 133B |
| 1983 | 7.35B | 1999 | 55.9B | 2015 | 145B |
| 1984 | 8.12B | 2000 | 57.9B | 2016 | 148B |
| 1985 | 9.23B | 2001 | 59.1B | 2017 | 150B |
| 1986 | 10.3B | 2002 | 59.6B | 2018 | 151B |
| 1987 | 12B | 2003 | 64.8B | 2019 | 156B |
| 1988 | 12.7B | 2004 | 67.6B | 2020 | 178B |
| 1989 | 12.3B | 2005 | 65.7B | 2021 | 182B |
| 1990 | 12.6B | 2006 | 65.7B | 2022 | 197B |
| 1991 | 19B | 2007 | 63.4B | 2023 | 210B |
| 1992 | 33.3B | 2008 | 63.3B | 2024 | 228B |
| 1993 | 46.4B | 2009 | 75.5B | 2025 | 251B |
| 1994 | 50.9B | 2010 | 94.3B | 2026 | 267B |
| 1995 | 54.4B | 2011 | 103B | | |
Show data table
| 1980 | 62.5% | 1996 | 12.4% | 2012 | 9.5% |
| 1981 | 61.9% | 1997 | 15.3% | 2013 | 13% |
| 1982 | 57.1% | 1998 | 12.2% | 2014 | 17.3% |
| 1983 | 53.9% | 1999 | 7.8% | 2015 | 18.6% |
| 1984 | 53.6% | 2000 | 1.8% | 2016 | 21.5% |
| 1985 | 56.1% | 2001 | 0.4% | 2017 | 22% |
| 1986 | 57.7% | 2002 | -2.8% | 2018 | 24.6% |
| 1987 | 57.7% | 2003 | -1.4% | 2019 | 27.3% |
| 1988 | 60.4% | 2004 | -4.3% | 2020 | 33.5% |
| 1989 | 68.7% | 2005 | -6.9% | 2021 | 34.5% |
| 1990 | 73.1% | 2006 | -7.1% | 2022 | 32.4% |
| 1991 | 70.3% | 2007 | -7.3% | 2023 | 34.5% |
| 1992 | 51.2% | 2008 | -9.9% | 2024 | 38.5% |
| 1993 | 33.3% | 2009 | -7.3% | 2025 | 41.8% |
| 1994 | 33.7% | 2010 | 3.2% | 2026 | 45.7% |
| 1995 | 8.4% | 2011 | 5% | | |
Show data table
| 1980 | 21B | 1996 | 12.7B | 2012 | 19B |
| 1981 | 23.6B | 1997 | 16.9B | 2013 | 26.4B |
| 1982 | 24.5B | 1998 | 14.7B | 2014 | 35.6B |
| 1983 | 25.8B | 1999 | 9.93B | 2015 | 39B |
| 1984 | 28.7B | 2000 | 2.39B | 2016 | 46.3B |
| 1985 | 32.7B | 2001 | 579M | 2017 | 49.5B |
| 1986 | 36.2B | 2002 | -4.11B | 2018 | 57.1B |
| 1987 | 39.1B | 2003 | -2.17B | 2019 | 65B |
| 1988 | 46.3B | 2004 | -6.9B | 2020 | 79.3B |
| 1989 | 59B | 2005 | -11.4B | 2021 | 85.9B |
| 1990 | 66.5B | 2006 | -12.2B | 2022 | 86.3B |
| 1991 | 61.1B | 2007 | -13.6B | 2023 | 94.2B |
| 1992 | 43.4B | 2008 | -19.2B | 2024 | 106B |
| 1993 | 28.5B | 2009 | -13.3B | 2025 | 117B |
| 1994 | 30.6B | 2010 | 5.96B | 2026 | 131B |
| 1995 | 8.23B | 2011 | 9.97B | | |