Datentabelle
| 1949 | 198 Mio. | 1975 | 2,28 Mrd. | 2001 | 7,22 Mrd. |
| 1950 | 213 Mio. | 1976 | 2,53 Mrd. | 2002 | 9,05 Mrd. |
| 1951 | 232 Mio. | 1977 | 2,77 Mrd. | 2003 | 10,3 Mrd. |
| 1952 | 258 Mio. | 1978 | 2,73 Mrd. | 2004 | 10,9 Mrd. |
| 1953 | 294 Mio. | 1979 | 3 Mrd. | 2005 | 12,1 Mrd. |
| 1954 | 332 Mio. | 1980 | 2,67 Mrd. | 2006 | 13 Mrd. |
| 1955 | 383 Mio. | 1981 | 2,81 Mrd. | 2007 | 15 Mrd. |
| 1956 | 412 Mio. | 1982 | 2,75 Mrd. | 2008 | 16,8 Mrd. |
| 1957 | 450 Mio. | 1983 | 2,47 Mrd. | 2009 | 16 Mrd. |
| 1958 | 523 Mio. | 1984 | 2,19 Mrd. | 2010 | 17,7 Mrd. |
| 1959 | 766 Mio. | 1985 | 2,37 Mrd. | 2011 | 17 Mrd. |
| 1960 | 469 Mio. | 1986 | 2,77 Mrd. | 2012 | 17,7 Mrd. |
| 1961 | 301 Mio. | 1987 | 2,89 Mrd. | 2013 | 18,4 Mrd. |
| 1962 | 330 Mio. | 1988 | 2,66 Mrd. | 2014 | 17,6 Mrd. |
| 1963 | 350 Mio. | 1989 | 3,37 Mrd. | 2015 | 15,7 Mrd. |
| 1964 | 381 Mio. | 1990 | 5,32 Mrd. | 2016 | 17,8 Mrd. |
| 1965 | 423 Mio. | 1991 | 5,67 Mrd. | 2017 | 17,6 Mrd. |
| 1966 | 442 Mio. | 1992 | 6,16 Mrd. | 2018 | 19,6 Mrd. |
| 1967 | 508 Mio. | 1993 | 7,08 Mrd. | 2019 | 20,5 Mrd. |
| 1968 | 571 Mio. | 1994 | 5,29 Mrd. | 2020 | 15,8 Mrd. |
| 1969 | 597 Mio. | 1995 | 6,61 Mrd. | 2021 | 15,2 Mrd. |
| 1970 | 565 Mio. | 1996 | 7,51 Mrd. | 2022 | 15 Mrd. |
| 1971 | 571 Mio. | 1997 | 7,79 Mrd. | 2023 | 19,2 Mrd. |
| 1972 | 704 Mio. | 1998 | 8,78 Mrd. | 2024 | 25 Mrd. |
| 1973 | 862 Mio. | 1999 | 9,95 Mrd. | 2025 | 30 Mrd. |
| 1974 | 1,14 Mrd. | 2000 | 9,99 Mrd. | | |
Datentabelle
| 1960 | 3,5% | 1982 | 4,3% | 2004 | 2,7% |
| 1961 | 3,8% | 1983 | 3,9% | 2005 | 2,4% |
| 1962 | 3,7% | 1984 | 3,6% | 2006 | 2,3% |
| 1963 | 3,4% | 1985 | 3,5% | 2007 | 2,2% |
| 1964 | 3,4% | 1986 | 3,6% | 2008 | 2,2% |
| 1965 | 3,6% | 1987 | 3,3% | 2009 | 2,5% |
| 1966 | 3,1% | 1988 | 2,9% | 2010 | 2,3% |
| 1967 | 3,3% | 1989 | 3,1% | 2011 | 2% |
| 1968 | 3,3% | 1990 | 3,5% | 2012 | 2% |
| 1969 | 3,1% | 1991 | 3,8% | 2013 | 1,9% |
| 1970 | 3,3% | 1992 | 3,9% | 2014 | 1,9% |
| 1971 | 3,5% | 1993 | 3,9% | 2015 | 1,8% |
| 1972 | 3,4% | 1994 | 4,1% | 2016 | 2% |
| 1973 | 3,3% | 1995 | 2,8% | 2017 | 2% |
| 1974 | 3,2% | 1996 | 3% | 2018 | 2,5% |
| 1975 | 5,1% | 1997 | 3% | 2019 | 2,6% |
| 1976 | 4,9% | 1998 | 3,2% | 2020 | 2,2% |
| 1977 | 4,7% | 1999 | 3,9% | 2021 | 1,8% |
| 1978 | 4,2% | 2000 | 3,6% | 2022 | 1,6% |
| 1979 | 3,4% | 2001 | 3,6% | 2023 | 1,7% |
| 1980 | 3,9% | 2002 | 3,8% | 2024 | 1,8% |
| 1981 | 3,8% | 2003 | 3,3% | 2025 | 1,9% |