Show data table
| 1949 | 1.21B | 1975 | 10.9B | 2001 | 28B |
| 1950 | 1.34B | 1976 | 11.2B | 2002 | 30.7B |
| 1951 | 2.11B | 1977 | 12.6B | 2003 | 38.7B |
| 1952 | 3.01B | 1978 | 15.9B | 2004 | 44.6B |
| 1953 | 3.28B | 1979 | 19B | 2005 | 44.5B |
| 1954 | 2.81B | 1980 | 22.2B | 2006 | 45.8B |
| 1955 | 2.64B | 1981 | 20B | 2007 | 50.8B |
| 1956 | 3.53B | 1982 | 18.9B | 2008 | 55.6B |
| 1957 | 3.62B | 1983 | 18.2B | 2009 | 56.7B |
| 1958 | 3.32B | 1984 | 17B | 2010 | 52.1B |
| 1959 | 3.05B | 1985 | 17.5B | 2011 | 54.2B |
| 1960 | 3.26B | 1986 | 23.9B | 2012 | 50.2B |
| 1961 | 3.47B | 1987 | 29.3B | 2013 | 52B |
| 1962 | 3.77B | 1988 | 30.3B | 2014 | 53.2B |
| 1963 | 3.89B | 1989 | 29.7B | 2015 | 45.7B |
| 1964 | 4.13B | 1990 | 35.8B | 2016 | 45.7B |
| 1965 | 4.3B | 1991 | 35.9B | 2017 | 48B |
| 1966 | 4.55B | 1992 | 37.9B | 2018 | 51.3B |
| 1967 | 4.92B | 1993 | 35.8B | 2019 | 50.5B |
| 1968 | 5.15B | 1994 | 37.3B | 2020 | 53.5B |
| 1969 | 4.96B | 1995 | 40.1B | 2021 | 58.7B |
| 1970 | 4.94B | 1996 | 39B | 2022 | 54.7B |
| 1971 | 5.29B | 1997 | 34.7B | 2023 | 59.5B |
| 1972 | 6.33B | 1998 | 33.6B | 2024 | 63.6B |
| 1973 | 7.98B | 1999 | 32.7B | 2025 | 68B |
| 1974 | 8.36B | 2000 | 28.5B | | |
Show data table
| 1950 | 4.7% | 1976 | 3.2% | 2002 | 2.1% |
| 1951 | 6% | 1977 | 3.2% | 2003 | 2.1% |
| 1952 | 7.2% | 1978 | 3.2% | 2004 | 2.1% |
| 1953 | 7.6% | 1979 | 3.1% | 2005 | 2% |
| 1954 | 6.1% | 1980 | 3.2% | 2006 | 2% |
| 1955 | 5.4% | 1981 | 3.2% | 2007 | 1.9% |
| 1956 | 6.5% | 1982 | 3.2% | 2008 | 1.9% |
| 1957 | 6.2% | 1983 | 3.2% | 2009 | 2.1% |
| 1958 | 5.7% | 1984 | 3.2% | 2010 | 2% |
| 1959 | 5.6% | 1985 | 3.1% | 2011 | 1.9% |
| 1960 | 5.4% | 1986 | 3.1% | 2012 | 1.9% |
| 1961 | 5.3% | 1987 | 3.1% | 2013 | 1.8% |
| 1962 | 5.2% | 1988 | 3% | 2014 | 1.9% |
| 1963 | 4.7% | 1989 | 2.9% | 2015 | 1.9% |
| 1964 | 4.5% | 1990 | 2.8% | 2016 | 1.9% |
| 1965 | 4.4% | 1991 | 2.8% | 2017 | 1.9% |
| 1966 | 4.3% | 1992 | 2.7% | 2018 | 1.8% |
| 1967 | 4.3% | 1993 | 2.7% | 2019 | 1.9% |
| 1968 | 4.1% | 1994 | 2.7% | 2020 | 2% |
| 1969 | 3.7% | 1995 | 2.5% | 2021 | 2% |
| 1970 | 3.5% | 1996 | 2.4% | 2022 | 2% |
| 1971 | 3.3% | 1997 | 2.4% | 2023 | 1.9% |
| 1972 | 3.2% | 1998 | 2.2% | 2024 | 2% |
| 1973 | 3.1% | 1999 | 2.2% | 2025 | 2% |
| 1974 | 3.1% | 2000 | 2.1% | | |
| 1975 | 3.2% | 2001 | 2% | | |