Datentabelle
| 1951 | 250 Mio. | 1976 | 833 Mio. | 2001 | 2,84 Mrd. |
| 1952 | 287 Mio. | 1977 | 914 Mio. | 2002 | 3,27 Mrd. |
| 1953 | 251 Mio. | 1978 | 1,03 Mrd. | 2003 | 3,72 Mrd. |
| 1954 | 217 Mio. | 1979 | 1,18 Mrd. | 2004 | 4,13 Mrd. |
| 1955 | 204 Mio. | 1980 | 1,43 Mrd. | 2005 | 4,59 Mrd. |
| 1956 | 169 Mio. | 1981 | 1,74 Mrd. | 2006 | 4,97 Mrd. |
| 1957 | 153 Mio. | 1982 | 1,85 Mrd. | 2007 | 5,34 Mrd. |
| 1958 | 165 Mio. | 1983 | 1,99 Mrd. | 2008 | 5,23 Mrd. |
| 1959 | 187 Mio. | 1984 | 2,11 Mrd. | 2009 | 5,27 Mrd. |
| 1960 | 209 Mio. | 1985 | 2,14 Mrd. | 2010 | 5,97 Mrd. |
| 1961 | 210 Mio. | 1986 | 2,28 Mrd. | 2011 | 6,95 Mrd. |
| 1962 | 200 Mio. | 1987 | 2,5 Mrd. | 2012 | 7,48 Mrd. |
| 1963 | 220 Mio. | 1988 | 2,72 Mrd. | 2013 | 7,66 Mrd. |
| 1964 | 258 Mio. | 1989 | 2,58 Mrd. | 2014 | 8,68 Mrd. |
| 1965 | 440 Mio. | 1990 | 2,81 Mrd. | 2015 | 9,51 Mrd. |
| 1966 | 550 Mio. | 1991 | 3,07 Mrd. | 2016 | 10 Mrd. |
| 1967 | 478 Mio. | 1992 | 3,39 Mrd. | 2017 | 11,3 Mrd. |
| 1968 | 493 Mio. | 1993 | 3,31 Mrd. | 2018 | 11,5 Mrd. |
| 1969 | 553 Mio. | 1994 | 3,32 Mrd. | 2019 | 10,2 Mrd. |
| 1970 | 635 Mio. | 1995 | 3,67 Mrd. | 2020 | 10,2 Mrd. |
| 1971 | 739 Mio. | 1996 | 3,55 Mrd. | 2021 | 11,6 Mrd. |
| 1972 | 478 Mio. | 1997 | 3,32 Mrd. | 2022 | 10,3 Mrd. |
| 1973 | 478 Mio. | 1998 | 3,22 Mrd. | 2023 | 8,63 Mrd. |
| 1974 | 609 Mio. | 1999 | 3,08 Mrd. | 2024 | 10,3 Mrd. |
| 1975 | 771 Mio. | 2000 | 2,97 Mrd. | 2025 | 11,9 Mrd. |
Datentabelle
| 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% | | |