| 1949 | -1,1 % |
| 1950 | -6,4% |
| 1951 | 7,6% |
| 1952 | 2,1% |
| 1953 | -1,7% |
| 1954 | 0,4% |
| 1955 | 1,4% |
| 1956 | 2,8% |
| 1957 | 2,0% |
| 1958 | 2,3% |
| 1959 | 0,6% |
| 1960 | 1,6% |
| 1961 | 2,5% |
| 1962 | 2,8% |
| 1963 | 3,0% |
| 1964 | 2,4% |
| 1965 | 3,2% |
| 1966 | 3,3% |
| 1967 | 1,9% |
| 1968 | 1,6% |
| 1969 | 1,8% |
| 1970 | 3,6% |
| 1971 | 5,2% |
| 1972 | 5,4% |
| 1973 | 7,1% |
| 1974 | 6,9% |
| 1975 | 6,0% |
| 1976 | 4,2% |
| 1977 | 3,7% |
| 1978 | 2,7% |
| 1979 | 4,1% |
| 1980 | 5,4% |
| 1981 | 6,3% |
| 1982 | 5,2% |
| 1983 | 3,2% |
| 1984 | 2,5% |
| 1985 | 2,0% |
| 1986 | -0,1% |
| 1987 | 0,2% |
| 1988 | 1,2% |
| 1989 | 2,8% |
| 1990 | 2,6% |
| 1991 | 3,7% |
| 1992 | 5,1% |
| 1993 | 4,4% |
| 1994 | 2,8% |
| 1995 | 1,8% |
| 1996 | 1,4% |
| 1997 | 1,9% |
| 1998 | 1,0% |
| 1999 | 0,6% |
| 2000 | 1,4% |
| 2001 | 1,9% |
| 2002 | 1,3% |
| 2003 | 1,1% |
| 2004 | 1,7% |
| 2005 | 1,5% |
| 2006 | 1,6% |
| 2007 | 2,3% |
| 2008 | 2,6% |
| 2009 | 0,3% |
| 2010 | 1,1% |
| 2011 | 2,1% |
| 2012 | 2,0% |
| 2013 | 1,4% |
| 2014 | 1,0% |
| 2015 | 0,5% |
| 2016 | 0,5% |
| 2017 | 1,5% |
| 2018 | 1,8% |
