Show data table
| 1972 | 51.4M | 1990 | 328M | 2008 | 568M |
| 1973 | 112M | 1991 | 269M | 2009 | 577M |
| 1974 | 188M | 1992 | 367M | 2010 | 756M |
| 1975 | 157M | 1993 | 419M | 2011 | 825M |
| 1976 | 133M | 1994 | 450M | 2012 | 925M |
| 1977 | 161M | 1995 | 524M | 2013 | 1.05B |
| 1978 | 186M | 1996 | 576M | 2014 | 1.03B |
| 1979 | 279M | 1997 | 575M | 2015 | 970M |
| 1980 | 477M | 1998 | 573M | 2016 | 987M |
| 1981 | 710M | 1999 | 574M | 2017 | 1.16B |
| 1982 | 599M | 2000 | 556M | 2018 | 1.27B |
| 1983 | 275M | 2001 | 523M | 2019 | 1.15B |
| 1984 | 222M | 2002 | 344M | 2020 | 1.09B |
| 1985 | 204M | 2003 | 270M | 2021 | 1.25B |
| 1986 | 242M | 2004 | 279M | 2022 | 1.3B |
| 1987 | 224M | 2005 | 347M | 2023 | 1.51B |
| 1988 | 260M | 2006 | 393M | 2024 | 1.58B |
| 1989 | 298M | 2007 | 416M | 2025 | 1.95B |
Show data table
| 1972 | 2.2% | 1990 | 3.5% | 2008 | 1.9% |
| 1973 | 3.8% | 1991 | 2.4% | 2009 | 1.8% |
| 1974 | 4.5% | 1992 | 2.8% | 2010 | 1.9% |
| 1975 | 4.3% | 1993 | 2.8% | 2011 | 1.7% |
| 1976 | 3.5% | 1994 | 2.6% | 2012 | 1.6% |
| 1977 | 3.7% | 1995 | 2.7% | 2013 | 1.7% |
| 1978 | 3.6% | 1996 | 2.8% | 2014 | 1.7% |
| 1979 | 3.8% | 1997 | 2.4% | 2015 | 1.8% |
| 1980 | 4.7% | 1998 | 2.3% | 2016 | 1.7% |
| 1981 | 6.3% | 1999 | 2.4% | 2017 | 1.8% |
| 1982 | 6.4% | 2000 | 2.4% | 2018 | 1.9% |
| 1983 | 5.4% | 2001 | 2.5% | 2019 | 1.9% |
| 1984 | 4.6% | 2002 | 2.5% | 2020 | 2% |
| 1985 | 4.3% | 2003 | 2.2% | 2021 | 2.1% |
| 1986 | 4.1% | 2004 | 2% | 2022 | 1.8% |
| 1987 | 3% | 2005 | 2% | 2023 | 1.9% |
| 1988 | 3.2% | 2006 | 2% | 2024 | 2% |
| 1989 | 3.5% | 2007 | 1.8% | 2025 | 2.3% |