Show data table
| 1962 | 250M | 1984 | 3.74B | 2006 | 2.95B |
| 1963 | 336M | 1985 | 4.2B | 2007 | 3.31B |
| 1964 | 448M | 1986 | 4.73B | 2008 | 3.78B |
| 1965 | 515M | 1987 | 4.81B | 2009 | 4.02B |
| 1966 | 482M | 1988 | 4.45B | 2010 | 4.41B |
| 1967 | 508M | 1989 | 3.52B | 2011 | 4.46B |
| 1968 | 649M | 1990 | 2.26B | 2012 | 4.56B |
| 1969 | 889M | 1991 | 1.35B | 2013 | 4.36B |
| 1970 | 1.09B | 1992 | 1.42B | 2014 | 5.09B |
| 1971 | 1.27B | 1993 | 1.53B | 2015 | 5.48B |
| 1972 | 1.07B | 1994 | 1.71B | 2016 | 4.51B |
| 1973 | 1.24B | 1995 | 1.95B | 2017 | 2.77B |
| 1974 | 1.85B | 1996 | 2.12B | 2018 | 3.12B |
| 1975 | 1.93B | 1997 | 2.27B | 2019 | 3.74B |
| 1976 | 2.2B | 1998 | 2.37B | 2020 | 4.51B |
| 1977 | 2.75B | 1999 | 2.45B | 2021 | 5.17B |
| 1978 | 2.49B | 2000 | 2.63B | 2022 | 4.65B |
| 1979 | 1.15B | 2001 | 2.83B | 2023 | 3.17B |
| 1980 | 1.36B | 2002 | 2.9B | 2024 | 2.4B |
| 1981 | 1.82B | 2003 | 2.38B | 2025 | 2.5B |
| 1982 | 2.31B | 2004 | 2.37B | | |
| 1983 | 3B | 2005 | 2.66B | | |
Show data table
| 1962 | 6.7% | 1984 | 8.3% | 2006 | 2.6% |
| 1963 | 8.7% | 1985 | 7.9% | 2007 | 2.4% |
| 1964 | 10.3% | 1986 | 7.5% | 2008 | 2.2% |
| 1965 | 10.1% | 1987 | 6.5% | 2009 | 2% |
| 1966 | 8.7% | 1988 | 5.1% | 2010 | 2% |
| 1967 | 8.9% | 1989 | 4% | 2011 | 1.8% |
| 1968 | 11.1% | 1990 | 3.5% | 2012 | 1.6% |
| 1969 | 14.3% | 1991 | 3.6% | 2013 | 1.6% |
| 1970 | 16% | 1992 | 3.2% | 2014 | 1.7% |
| 1971 | 17.2% | 1993 | 3.1% | 2015 | 1.7% |
| 1972 | 13.6% | 1994 | 3.2% | 2016 | 1.7% |
| 1973 | 13.5% | 1995 | 3.1% | 2017 | 1.4% |
| 1974 | 17.3% | 1996 | 3% | 2018 | 1.2% |
| 1975 | 15.4% | 1997 | 2.8% | 2019 | 1.2% |
| 1976 | 13.7% | 1998 | 2.7% | 2020 | 1.1% |
| 1977 | 13.1% | 1999 | 2.6% | 2021 | 1.1% |
| 1978 | 9.9% | 2000 | 2.6% | 2022 | 1% |
| 1979 | 6.5% | 2001 | 3% | 2023 | 0.8% |
| 1980 | 6.2% | 2002 | 3.3% | 2024 | 0.7% |
| 1981 | 7.4% | 2003 | 3.2% | 2025 | 0.6% |
| 1982 | 7.2% | 2004 | 2.9% | | |
| 1983 | 8% | 2005 | 2.7% | | |