Datentabelle
| 1955 | 143 Mio. | 1976 | 593 Mio. | 1997 | 1,54 Mrd. |
| 1956 | 173 Mio. | 1977 | 749 Mio. | 1998 | 1,45 Mrd. |
| 1957 | 229 Mio. | 1978 | 828 Mio. | 1999 | 1,41 Mrd. |
| 1958 | 252 Mio. | 1979 | 926 Mio. | 2000 | 1,79 Mrd. |
| 1959 | 226 Mio. | 1980 | 1 Mrd. | 2001 | 1,91 Mrd. |
| 1960 | 234 Mio. | 1981 | 1,01 Mrd. | 2002 | 1,07 Mrd. |
| 1961 | 115 Mio. | 1982 | 1,52 Mrd. | 2003 | 988 Mio. |
| 1962 | 204 Mio. | 1983 | 2,01 Mrd. | 2004 | 1,45 Mrd. |
| 1963 | 245 Mio. | 1984 | 1,33 Mrd. | 2005 | 2,67 Mrd. |
| 1964 | 200 Mio. | 1985 | 820 Mio. | 2006 | 3,63 Mrd. |
| 1965 | 227 Mio. | 1986 | 1 Mrd. | 2007 | 4,35 Mrd. |
| 1966 | 239 Mio. | 1987 | 766 Mio. | 2008 | 5,66 Mrd. |
| 1967 | 270 Mio. | 1988 | 1,1 Mrd. | 2009 | 4,06 Mrd. |
| 1968 | 273 Mio. | 1989 | 1,2 Mrd. | 2010 | 3,99 Mrd. |
| 1969 | 264 Mio. | 1990 | 738 Mio. | 2011 | 3,58 Mrd. |
| 1970 | 273 Mio. | 1991 | 984 Mio. | 2012 | 5,11 Mrd. |
| 1971 | 352 Mio. | 1992 | 993 Mio. | 2013 | 6,2 Mrd. |
| 1972 | 405 Mio. | 1993 | 1,29 Mrd. | 2014 | 1,55 Mrd. |
| 1973 | 421 Mio. | 1994 | 940 Mio. | 2015 | 321 Mio. |
| 1974 | 602 Mio. | 1995 | 1,2 Mrd. | 2016 | 218 Mio. |
| 1975 | 712 Mio. | 1996 | 733 Mio. | 2017 | 2,13 Mrd. |
Datentabelle
| 1955 | 2,6% | 1976 | 1,9% | 1997 | 1,8% |
| 1956 | 2,8% | 1977 | 2,1% | 1998 | 1,6% |
| 1957 | 3,2% | 1978 | 2,1% | 1999 | 1,4% |
| 1958 | 3,4% | 1979 | 1,9% | 2000 | 1,5% |
| 1959 | 3% | 1980 | 1,7% | 2001 | 1,6% |
| 1960 | 3,1% | 1981 | 1,5% | 2002 | 1,2% |
| 1961 | 1,4% | 1982 | 2,2% | 2003 | 1,2% |
| 1962 | 2,3% | 1983 | 3% | 2004 | 1,3% |
| 1963 | 2,6% | 1984 | 2,3% | 2005 | 1,8% |
| 1964 | 2,4% | 1985 | 1,4% | 2006 | 2% |
| 1965 | 2,6% | 1986 | 1,6% | 2007 | 1,9% |
| 1966 | 2,7% | 1987 | 1,6% | 2008 | 1,8% |
| 1967 | 2,9% | 1988 | 1,8% | 2009 | 1,2% |
| 1968 | 2,7% | 1989 | 2,8% | 2010 | 1% |
| 1969 | 2,5% | 1990 | 1,5% | 2011 | 1,1% |
| 1970 | 2,3% | 1991 | 1,8% | 2012 | 1,3% |
| 1971 | 2,7% | 1992 | 1,6% | 2013 | 1,7% |
| 1972 | 2,8% | 1993 | 2,1% | 2014 | 1,2% |
| 1973 | 2,5% | 1994 | 1,6% | 2015 | 0,9% |
| 1974 | 2,3% | 1995 | 1,5% | 2016 | 0,5% |
| 1975 | 2,6% | 1996 | 1% | 2017 | 2,2% |