Tabella dei dati
| 1949 | 145 mln | 1975 | 2,11 mld | 2001 | 10,2 mld |
| 1950 | 149 mln | 1976 | 2,52 mld | 2002 | 10,3 mld |
| 1951 | 155 mln | 1977 | 2,81 mld | 2003 | 12,9 mld |
| 1952 | 192 mln | 1978 | 3,47 mld | 2004 | 15,3 mld |
| 1953 | 191 mln | 1979 | 4,91 mld | 2005 | 16 mld |
| 1954 | 198 mln | 1980 | 5,51 mld | 2006 | 17,3 mld |
| 1955 | 223 mln | 1981 | 4,98 mld | 2007 | 20,1 mld |
| 1956 | 250 mln | 1982 | 4,96 mld | 2008 | 22,2 mld |
| 1957 | 274 mln | 1983 | 4,77 mld | 2009 | 20,2 mld |
| 1958 | 268 mln | 1984 | 4,85 mld | 2010 | 19,7 mld |
| 1959 | 225 mln | 1985 | 5,08 mld | 2011 | 19,7 mld |
| 1960 | 233 mln | 1986 | 6,27 mld | 2012 | 18,9 mld |
| 1961 | 239 mln | 1987 | 7,92 mld | 2013 | 17,2 mld |
| 1962 | 309 mln | 1988 | 8,9 mld | 2014 | 17,2 mld |
| 1963 | 317 mln | 1989 | 9,3 mld | 2015 | 15,2 mld |
| 1964 | 387 mln | 1990 | 11,7 mld | 2016 | 14 mld |
| 1965 | 439 mln | 1991 | 11,7 mld | 2017 | 16 mld |
| 1966 | 561 mln | 1992 | 12,3 mld | 2018 | 17,8 mld |
| 1967 | 546 mln | 1993 | 10 mld | 2019 | 17,2 mld |
| 1968 | 669 mln | 1994 | 10,1 mld | 2020 | 17,5 mld |
| 1969 | 806 mln | 1995 | 11,4 mld | 2021 | 20 mld |
| 1970 | 859 mln | 1996 | 11,3 mld | 2022 | 20,7 mld |
| 1971 | 901 mln | 1997 | 9,87 mld | 2023 | 24,8 mld |
| 1972 | 1,26 mld | 1998 | 10,3 mld | 2024 | 25,2 mld |
| 1973 | 1,52 mld | 1999 | 11,1 mld | 2025 | 40,2 mld |
| 1974 | 1,97 mld | 2000 | 10,3 mld | | |
Tabella dei dati
| 1954 | 2,3% | 1978 | 2,4% | 2002 | 1,5% |
| 1955 | 2,3% | 1979 | 2,5% | 2003 | 1,4% |
| 1956 | 2,3% | 1980 | 2,5% | 2004 | 1,4% |
| 1957 | 2,2% | 1981 | 2,6% | 2005 | 1,4% |
| 1958 | 1,9% | 1982 | 2,7% | 2006 | 1,4% |
| 1959 | 1,9% | 1983 | 2,9% | 2007 | 1,4% |
| 1960 | 2,3% | 1984 | 3% | 2008 | 1,4% |
| 1961 | 2% | 1985 | 3% | 2009 | 1,4% |
| 1962 | 2,3% | 1986 | 2,6% | 2010 | 1,4% |
| 1963 | 2% | 1987 | 2,6% | 2011 | 1,3% |
| 1964 | 1,9% | 1988 | 2,5% | 2012 | 1,4% |
| 1965 | 1,9% | 1989 | 2,4% | 2013 | 1,3% |
| 1966 | 2,1% | 1990 | 2,3% | 2014 | 1,2% |
| 1967 | 1,9% | 1991 | 2,1% | 2015 | 1,3% |
| 1968 | 2,3% | 1992 | 2% | 2016 | 1,1% |
| 1969 | 2,4% | 1993 | 2% | 2017 | 1,2% |
| 1970 | 2,3% | 1994 | 2% | 2018 | 1,2% |
| 1971 | 2,1% | 1995 | 1,9% | 2019 | 1,2% |
| 1972 | 2,3% | 1996 | 1,8% | 2020 | 1,4% |
| 1973 | 2,1% | 1997 | 1,7% | 2021 | 1,4% |
| 1974 | 2,2% | 1998 | 1,8% | 2022 | 1,4% |
| 1975 | 2% | 1999 | 1,8% | 2023 | 1,5% |
| 1976 | 2,3% | 2000 | 1,7% | 2024 | 1,5% |
| 1977 | 2,3% | 2001 | 1,6% | 2025 | 2,1% |