Show data table
| 1951 | 250M | 1976 | 833M | 2001 | 2.84B |
| 1952 | 287M | 1977 | 914M | 2002 | 3.27B |
| 1953 | 251M | 1978 | 1.03B | 2003 | 3.72B |
| 1954 | 217M | 1979 | 1.18B | 2004 | 4.13B |
| 1955 | 204M | 1980 | 1.43B | 2005 | 4.59B |
| 1956 | 169M | 1981 | 1.74B | 2006 | 4.97B |
| 1957 | 153M | 1982 | 1.85B | 2007 | 5.34B |
| 1958 | 165M | 1983 | 1.99B | 2008 | 5.23B |
| 1959 | 187M | 1984 | 2.11B | 2009 | 5.27B |
| 1960 | 209M | 1985 | 2.14B | 2010 | 5.97B |
| 1961 | 210M | 1986 | 2.28B | 2011 | 6.95B |
| 1962 | 200M | 1987 | 2.5B | 2012 | 7.48B |
| 1963 | 220M | 1988 | 2.72B | 2013 | 7.66B |
| 1964 | 258M | 1989 | 2.58B | 2014 | 8.68B |
| 1965 | 440M | 1990 | 2.81B | 2015 | 9.51B |
| 1966 | 550M | 1991 | 3.07B | 2016 | 10B |
| 1967 | 478M | 1992 | 3.39B | 2017 | 11.3B |
| 1968 | 493M | 1993 | 3.31B | 2018 | 11.5B |
| 1969 | 553M | 1994 | 3.32B | 2019 | 10.2B |
| 1970 | 635M | 1995 | 3.67B | 2020 | 10.2B |
| 1971 | 739M | 1996 | 3.55B | 2021 | 11.6B |
| 1972 | 478M | 1997 | 3.32B | 2022 | 10.3B |
| 1973 | 478M | 1998 | 3.22B | 2023 | 8.63B |
| 1974 | 609M | 1999 | 3.08B | 2024 | 10.3B |
| 1975 | 771M | 2000 | 2.97B | 2025 | 11.9B |
Show data table
| 1953 | 6.3% | 1978 | 5.5% | 2003 | 4.1% |
| 1954 | 5.4% | 1979 | 5.5% | 2004 | 4% |
| 1955 | 5.6% | 1980 | 5.5% | 2005 | 3.9% |
| 1956 | 5% | 1981 | 5.7% | 2006 | 3.6% |
| 1957 | 4.2% | 1982 | 6.4% | 2007 | 3.5% |
| 1958 | 4.3% | 1983 | 6.6% | 2008 | 3.5% |
| 1959 | 4.3% | 1984 | 6.7% | 2009 | 3.3% |
| 1960 | 4.3% | 1985 | 6.9% | 2010 | 3% |
| 1961 | 4.1% | 1986 | 7% | 2011 | 2.9% |
| 1962 | 3.7% | 1987 | 7% | 2012 | 3.1% |
| 1963 | 3.6% | 1988 | 6.8% | 2013 | 3.1% |
| 1964 | 3.9% | 1989 | 6.5% | 2014 | 3.1% |
| 1965 | 5.9% | 1990 | 6.5% | 2015 | 3.2% |
| 1966 | 6.7% | 1991 | 6.6% | 2016 | 3.2% |
| 1967 | 5.4% | 1992 | 6.7% | 2017 | 3.4% |
| 1968 | 5.1% | 1993 | 6.4% | 2018 | 3.6% |
| 1969 | 5.5% | 1994 | 5.9% | 2019 | 3.5% |
| 1970 | 6.2% | 1995 | 5.8% | 2020 | 3.5% |
| 1971 | 6.7% | 1996 | 6% | 2021 | 3.4% |
| 1972 | 6.9% | 1997 | 5.6% | 2022 | 3.2% |
| 1973 | 6.2% | 1998 | 5.4% | 2023 | 2.9% |
| 1974 | 6.1% | 1999 | 5.2% | 2024 | 2.7% |
| 1975 | 6.3% | 2000 | 4.2% | 2025 | 2.9% |
| 1976 | 5.9% | 2001 | 3.9% | | |
| 1977 | 5.5% | 2002 | 4.1% | | |