데이터 표
| 1951 | 2.5억 | 1976 | 8.33억 | 2001 | 28.4억 |
| 1952 | 2.87억 | 1977 | 9.14억 | 2002 | 32.7억 |
| 1953 | 2.51억 | 1978 | 10.3억 | 2003 | 37.2억 |
| 1954 | 2.17억 | 1979 | 11.8억 | 2004 | 41.3억 |
| 1955 | 2.04억 | 1980 | 14.3억 | 2005 | 45.9억 |
| 1956 | 1.69억 | 1981 | 17.4억 | 2006 | 49.7억 |
| 1957 | 1.53억 | 1982 | 18.5억 | 2007 | 53.4억 |
| 1958 | 1.65억 | 1983 | 19.9억 | 2008 | 52.3억 |
| 1959 | 1.87억 | 1984 | 21.1억 | 2009 | 52.7억 |
| 1960 | 2.09억 | 1985 | 21.4억 | 2010 | 59.7억 |
| 1961 | 2.1억 | 1986 | 22.8억 | 2011 | 69.5억 |
| 1962 | 2억 | 1987 | 25억 | 2012 | 74.8억 |
| 1963 | 2.2억 | 1988 | 27.2억 | 2013 | 76.6억 |
| 1964 | 2.58억 | 1989 | 25.8억 | 2014 | 86.8억 |
| 1965 | 4.4억 | 1990 | 28.1억 | 2015 | 95.1억 |
| 1966 | 5.5억 | 1991 | 30.7억 | 2016 | 100억 |
| 1967 | 4.78억 | 1992 | 33.9억 | 2017 | 113억 |
| 1968 | 4.93억 | 1993 | 33.1억 | 2018 | 115억 |
| 1969 | 5.53억 | 1994 | 33.2억 | 2019 | 102억 |
| 1970 | 6.35억 | 1995 | 36.7억 | 2020 | 102억 |
| 1971 | 7.39억 | 1996 | 35.5억 | 2021 | 116억 |
| 1972 | 4.78억 | 1997 | 33.2억 | 2022 | 103억 |
| 1973 | 4.78억 | 1998 | 32.2억 | 2023 | 86.3억 |
| 1974 | 6.09억 | 1999 | 30.8억 | 2024 | 103억 |
| 1975 | 7.71억 | 2000 | 29.7억 | 2025 | 119억 |
데이터 표
| 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% | | |