Show data table
| 1980 | 10.1B | 1996 | 4.35B | 2012 | 73.1B |
| 1981 | 10.8B | 1997 | 8.69B | 2013 | 73.2B |
| 1982 | 7B | 1998 | 2.97B | 2014 | 54.5B |
| 1983 | 5.26B | 1999 | 5.44B | 2015 | 17.6B |
| 1984 | 7.46B | 2000 | 16.8B | 2016 | 13.2B |
| 1985 | 6.91B | 2001 | 9.37B | 2017 | 27.5B |
| 1986 | 2.38B | 2002 | 3.64B | 2018 | 41.2B |
| 1987 | 3.72B | 2003 | 7.19B | 2019 | 37.3B |
| 1988 | 2.53B | 2004 | 9.51B | 2020 | 21.1B |
| 1989 | 3.93B | 2005 | 23.8B | 2021 | 48B |
| 1990 | 7.94B | 2006 | 38.5B | 2022 | 66.5B |
| 1991 | 1.36B | 2007 | 19.7B | 2023 | 73.8B |
| 1992 | 2.27B | 2008 | 22.3B | 2024 | 85B |
| 1993 | 3.05B | 2009 | 7.85B | 2025 | 87.2B |
| 1994 | 29M | 2010 | 12.2B | 2026 | 70.9B |
| 1995 | 108M | 2011 | 43.5B | | |
Show data table
| 1980 | 24.2% | 1996 | 6% | 2012 | 18.6% |
| 1981 | 23.2% | 1997 | 11.3% | 2013 | 17.9% |
| 1982 | 16.2% | 1998 | 3.9% | 2014 | 12.8% |
| 1983 | 13.3% | 1999 | 6.4% | 2015 | 4.6% |
| 1984 | 19% | 2000 | 16.3% | 2016 | 3.5% |
| 1985 | 17.9% | 2001 | 9.1% | 2017 | 6.8% |
| 1986 | 7.8% | 2002 | 3.3% | 2018 | 9.4% |
| 1987 | 11.1% | 2003 | 5.8% | 2019 | 8.6% |
| 1988 | 7.4% | 2004 | 6.4% | 2020 | 5.9% |
| 1989 | 10% | 2005 | 13.2% | 2021 | 11.4% |
| 1990 | 15.7% | 2006 | 17.3% | 2022 | 13% |
| 1991 | 2.8% | 2007 | 7.6% | 2023 | 14.1% |
| 1992 | 4.4% | 2008 | 7.1% | 2024 | 15.4% |
| 1993 | 5.8% | 2009 | 3.1% | 2025 | 15.3% |
| 1994 | 0.1% | 2010 | 4% | 2026 | 11.4% |
| 1995 | 0.2% | 2011 | 11.8% | | |