Show data table
| 1958 | 9.99M | 1982 | 170M | 2005 | 64.3M |
| 1959 | 11.7M | 1983 | 71.1M | 2006 | 75.8M |
| 1960 | 20.8M | 1984 | 44.6M | 2007 | 126M |
| 1961 | 27.5M | 1985 | 63.2M | 2008 | 114M |
| 1962 | 27.9M | 1986 | 51.7M | 2009 | 119M |
| 1963 | 31.1M | 1987 | 43.3M | 2010 | 123M |
| 1964 | 33.3M | 1988 | 22.8M | 2011 | 233M |
| 1965 | 35.6M | 1989 | 22.6M | 2012 | 332M |
| 1966 | 47.3M | 1990 | 27.6M | 2013 | 251M |
| 1968 | 44.3M | 1991 | 41.4M | 2014 | 266M |
| 1969 | 49M | 1992 | 41.7M | 2015 | 194M |
| 1970 | 46.9M | 1993 | 41M | 2016 | 164M |
| 1971 | 41.1M | 1994 | 37.8M | 2017 | 189M |
| 1972 | 30.2M | 1995 | 49.1M | 2018 | 219M |
| 1973 | 41.1M | 1996 | 44.4M | 2019 | 235M |
| 1974 | 64.1M | 1997 | 45.5M | 2020 | 246M |
| 1975 | 78.8M | 1998 | 57.5M | 2021 | 304M |
| 1976 | 89M | 1999 | 59.3M | 2022 | 249M |
| 1977 | 122M | 2000 | 50.9M | 2023 | 302M |
| 1978 | 101M | 2001 | 32.4M | 2024 | 274M |
| 1979 | 66.4M | 2002 | 37M | 2025 | 507M |
| 1980 | 121M | 2003 | 53.2M | | |
| 1981 | 196M | 2004 | 56.4M | | |
Show data table
| 1958 | 1% | 1982 | 0.5% | 2005 | 0.3% |
| 1959 | 1% | 1983 | 0.3% | 2006 | 0.3% |
| 1960 | 1.7% | 1984 | 0.6% | 2007 | 0.4% |
| 1961 | 2.1% | 1985 | 1% | 2008 | 0.3% |
| 1962 | 2% | 1986 | 0.9% | 2009 | 0.3% |
| 1963 | 2% | 1987 | 0.9% | 2010 | 0.3% |
| 1964 | 1.9% | 1988 | 0.4% | 2011 | 0.4% |
| 1965 | 1.7% | 1989 | 0.4% | 2012 | 0.6% |
| 1966 | 2.2% | 1990 | 0.3% | 2013 | 0.4% |
| 1968 | 2.7% | 1991 | 0.4% | 2014 | 0.5% |
| 1969 | 2.5% | 1992 | 0.4% | 2015 | 0.4% |
| 1970 | 2.1% | 1993 | 0.4% | 2016 | 0.3% |
| 1971 | 1.7% | 1994 | 0.4% | 2017 | 0.3% |
| 1972 | 1.4% | 1995 | 0.3% | 2018 | 0.3% |
| 1973 | 1.4% | 1996 | 0.3% | 2019 | 0.3% |
| 1974 | 1.6% | 1997 | 0.3% | 2020 | 0.4% |
| 1975 | 1.7% | 1998 | 0.3% | 2021 | 0.4% |
| 1976 | 1.6% | 1999 | 0.3% | 2022 | 0.3% |
| 1977 | 1.3% | 2000 | 0.4% | 2023 | 0.4% |
| 1978 | 0.9% | 2001 | 0.3% | 2024 | 0.3% |
| 1979 | 0.6% | 2002 | 0.3% | 2025 | 0.5% |
| 1980 | 0.8% | 2003 | 0.3% | | |
| 1981 | 0.7% | 2004 | 0.3% | | |