데이터 표
| 1949 | 12.1억 | 1975 | 109억 | 2001 | 280억 |
| 1950 | 13.4억 | 1976 | 112억 | 2002 | 307억 |
| 1951 | 21.1억 | 1977 | 126억 | 2003 | 387억 |
| 1952 | 30.1억 | 1978 | 159억 | 2004 | 446억 |
| 1953 | 32.8억 | 1979 | 190억 | 2005 | 445억 |
| 1954 | 28.1억 | 1980 | 222억 | 2006 | 458억 |
| 1955 | 26.4억 | 1981 | 200억 | 2007 | 508억 |
| 1956 | 35.3억 | 1982 | 189억 | 2008 | 556억 |
| 1957 | 36.2억 | 1983 | 182억 | 2009 | 567억 |
| 1958 | 33.2억 | 1984 | 170억 | 2010 | 521억 |
| 1959 | 30.5억 | 1985 | 175억 | 2011 | 542억 |
| 1960 | 32.6억 | 1986 | 239억 | 2012 | 502억 |
| 1961 | 34.7억 | 1987 | 293억 | 2013 | 520억 |
| 1962 | 37.7억 | 1988 | 303억 | 2014 | 532억 |
| 1963 | 38.9억 | 1989 | 297억 | 2015 | 457억 |
| 1964 | 41.3억 | 1990 | 358억 | 2016 | 457억 |
| 1965 | 43억 | 1991 | 359억 | 2017 | 480억 |
| 1966 | 45.5억 | 1992 | 379억 | 2018 | 513억 |
| 1967 | 49.2억 | 1993 | 358억 | 2019 | 505억 |
| 1968 | 51.5억 | 1994 | 373억 | 2020 | 535억 |
| 1969 | 49.6억 | 1995 | 401억 | 2021 | 587억 |
| 1970 | 49.4억 | 1996 | 390억 | 2022 | 547억 |
| 1971 | 52.9억 | 1997 | 347억 | 2023 | 595억 |
| 1972 | 63.3억 | 1998 | 336억 | 2024 | 636억 |
| 1973 | 79.8억 | 1999 | 327억 | 2025 | 680억 |
| 1974 | 83.6억 | 2000 | 285억 | | |
데이터 표
| 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% | | |