Datentabelle
| 1957 | 201 Mio. | 1980 | 2 Mrd. | 2003 | 3,27 Mrd. |
| 1958 | 219 Mio. | 1981 | 1,81 Mrd. | 2004 | 3,5 Mrd. |
| 1959 | 211 Mio. | 1982 | 1,93 Mrd. | 2005 | 3,48 Mrd. |
| 1960 | 200 Mio. | 1983 | 1,95 Mrd. | 2006 | 3,33 Mrd. |
| 1961 | 237 Mio. | 1984 | 1,81 Mrd. | 2007 | 3,52 Mrd. |
| 1962 | 274 Mio. | 1985 | 1,97 Mrd. | 2008 | 4,1 Mrd. |
| 1963 | 295 Mio. | 1986 | 2,57 Mrd. | 2009 | 4,06 Mrd. |
| 1964 | 330 Mio. | 1987 | 3,02 Mrd. | 2010 | 4,12 Mrd. |
| 1965 | 343 Mio. | 1988 | 3,28 Mrd. | 2011 | 4,97 Mrd. |
| 1966 | 378 Mio. | 1989 | 3,08 Mrd. | 2012 | 4,59 Mrd. |
| 1967 | 383 Mio. | 1990 | 4,06 Mrd. | 2013 | 5,03 Mrd. |
| 1968 | 374 Mio. | 1991 | 4,02 Mrd. | 2014 | 4,61 Mrd. |
| 1969 | 409 Mio. | 1992 | 4,14 Mrd. | 2015 | 4,52 Mrd. |
| 1970 | 436 Mio. | 1993 | 3,61 Mrd. | 2016 | 4,57 Mrd. |
| 1971 | 511 Mio. | 1994 | 3,9 Mrd. | 2017 | 4,63 Mrd. |
| 1972 | 601 Mio. | 1995 | 4,65 Mrd. | 2018 | 4,74 Mrd. |
| 1973 | 765 Mio. | 1996 | 4,24 Mrd. | 2019 | 5,02 Mrd. |
| 1974 | 888 Mio. | 1997 | 3,5 Mrd. | 2020 | 5,73 Mrd. |
| 1975 | 1,03 Mrd. | 1998 | 3,49 Mrd. | 2021 | 5,49 Mrd. |
| 1976 | 1,23 Mrd. | 1999 | 3,15 Mrd. | 2022 | 5,65 Mrd. |
| 1977 | 1,23 Mrd. | 2000 | 2,8 Mrd. | 2023 | 6,31 Mrd. |
| 1978 | 1,67 Mrd. | 2001 | 2,76 Mrd. | 2024 | 6,54 Mrd. |
| 1979 | 1,95 Mrd. | 2002 | 2,88 Mrd. | 2025 | 7,59 Mrd. |
Datentabelle
| 1957 | 2,8% | 1980 | 1,7% | 2003 | 0,9% |
| 1958 | 3% | 1981 | 1,7% | 2004 | 0,9% |
| 1959 | 2,7% | 1982 | 1,7% | 2005 | 0,8% |
| 1960 | 2,3% | 1983 | 1,7% | 2006 | 0,8% |
| 1961 | 2,5% | 1984 | 1,7% | 2007 | 0,7% |
| 1962 | 2,6% | 1985 | 1,8% | 2008 | 0,7% |
| 1963 | 2,5% | 1986 | 1,7% | 2009 | 0,7% |
| 1964 | 2,5% | 1987 | 1,6% | 2010 | 0,7% |
| 1965 | 2,5% | 1988 | 1,6% | 2011 | 0,7% |
| 1966 | 2,5% | 1989 | 1,5% | 2012 | 0,7% |
| 1967 | 2,4% | 1990 | 1,6% | 2013 | 0,7% |
| 1968 | 2,2% | 1991 | 1,5% | 2014 | 0,6% |
| 1969 | 2,2% | 1992 | 1,5% | 2015 | 0,7% |
| 1970 | 2,1% | 1993 | 1,4% | 2016 | 0,7% |
| 1971 | 2,1% | 1994 | 1,3% | 2017 | 0,7% |
| 1972 | 2% | 1995 | 1,4% | 2018 | 0,7% |
| 1973 | 1,9% | 1996 | 1,3% | 2019 | 0,7% |
| 1974 | 1,9% | 1997 | 1,2% | 2020 | 0,8% |
| 1975 | 1,9% | 1998 | 1,2% | 2021 | 0,7% |
| 1976 | 2,2% | 1999 | 1,1% | 2022 | 0,7% |
| 1977 | 2% | 2000 | 1% | 2023 | 0,7% |
| 1978 | 2% | 2001 | 1% | 2024 | 0,7% |
| 1979 | 2% | 2002 | 1% | 2025 | 0,8% |