데이터 표
| 1953 | 13.8억 | 1978 | 201억 | 2003 | 329억 |
| 1954 | 14억 | 1979 | 232억 | 2004 | 357억 |
| 1955 | 16.5억 | 1980 | 250억 | 2005 | 357억 |
| 1956 | 16.1억 | 1981 | 216억 | 2006 | 359억 |
| 1957 | 20억 | 1982 | 209억 | 2007 | 402억 |
| 1958 | 15.3억 | 1983 | 207억 | 2008 | 453억 |
| 1959 | 24.7억 | 1984 | 189억 | 2009 | 447억 |
| 1960 | 27억 | 1985 | 187억 | 2010 | 431억 |
| 1961 | 30.6억 | 1986 | 259억 | 2011 | 452억 |
| 1962 | 40.4억 | 1987 | 320억 | 2012 | 438억 |
| 1963 | 46.7억 | 1988 | 329억 | 2013 | 443억 |
| 1964 | 45.8억 | 1989 | 315억 | 2014 | 447억 |
| 1965 | 46.6억 | 1990 | 397억 | 2015 | 382억 |
| 1966 | 47.4억 | 1991 | 370억 | 2016 | 399억 |
| 1967 | 50.1억 | 1992 | 393억 | 2017 | 426억 |
| 1968 | 45.2억 | 1993 | 349억 | 2018 | 465억 |
| 1969 | 51.3억 | 1994 | 340억 | 2019 | 491억 |
| 1970 | 57.8억 | 1995 | 386억 | 2020 | 534억 |
| 1971 | 68억 | 1996 | 365억 | 2021 | 565억 |
| 1972 | 84.4억 | 1997 | 311억 | 2022 | 561억 |
| 1973 | 112억 | 1998 | 311억 | 2023 | 686억 |
| 1974 | 129억 | 1999 | 306억 | 2024 | 861억 |
| 1975 | 143억 | 2000 | 264억 | 2025 | 1,136억 |
| 1976 | 145억 | 2001 | 257억 | | |
| 1977 | 162억 | 2002 | 276억 | | |
데이터 표
| 1953 | 3.9% | 1978 | 3% | 2003 | 1.3% |
| 1954 | 3.7% | 1979 | 3% | 2004 | 1.3% |
| 1955 | 3.8% | 1980 | 2.9% | 2005 | 1.2% |
| 1956 | 3.4% | 1981 | 3% | 2006 | 1.2% |
| 1957 | 3.9% | 1982 | 3% | 2007 | 1.2% |
| 1958 | 2.8% | 1983 | 3% | 2008 | 1.2% |
| 1959 | 4.1% | 1984 | 2.9% | 2009 | 1.3% |
| 1960 | 3.8% | 1985 | 2.9% | 2010 | 1.2% |
| 1961 | 3.7% | 1986 | 2.8% | 2011 | 1.2% |
| 1962 | 4.5% | 1987 | 2.8% | 2012 | 1.2% |
| 1963 | 4.9% | 1988 | 2.6% | 2013 | 1.2% |
| 1964 | 4.4% | 1989 | 2.5% | 2014 | 1.1% |
| 1965 | 4.1% | 1990 | 2.5% | 2015 | 1.1% |
| 1966 | 3.9% | 1991 | 2% | 2016 | 1.1% |
| 1967 | 4.1% | 1992 | 1.8% | 2017 | 1.1% |
| 1968 | 3.4% | 1993 | 1.7% | 2018 | 1.1% |
| 1969 | 3.4% | 1994 | 1.5% | 2019 | 1.2% |
| 1970 | 3% | 1995 | 1.5% | 2020 | 1.4% |
| 1971 | 3% | 1996 | 1.5% | 2021 | 1.3% |
| 1972 | 3.2% | 1997 | 1.4% | 2022 | 1.3% |
| 1973 | 3.1% | 1998 | 1.4% | 2023 | 1.5% |
| 1974 | 3.2% | 1999 | 1.4% | 2024 | 1.8% |
| 1975 | 3.3% | 2000 | 1.3% | 2025 | 2.3% |
| 1976 | 3.1% | 2001 | 1.3% | | |
| 1977 | 3% | 2002 | 1.3% | | |