Tableau de données
| 1951 | 950 M | 1976 | 15,6 Md | 2001 | 3,63 Md |
| 1952 | 1,53 Md | 1977 | 17,4 Md | 2002 | 3,78 Md |
| 1953 | 2,28 Md | 1978 | 10,3 Md | 2003 | 4,15 Md |
| 1954 | 2,48 Md | 1979 | 1,94 Md | 2004 | 4,78 Md |
| 1955 | 2,93 Md | 1980 | 1,51 Md | 2005 | 5,9 Md |
| 1956 | 2,9 Md | 1981 | 1,57 Md | 2006 | 6,62 Md |
| 1957 | 2,43 Md | 1982 | 2,12 Md | 2007 | 8,59 Md |
| 1958 | 2,7 Md | 1983 | 2,2 Md | 2008 | 9,35 Md |
| 1959 | 3,38 Md | 1984 | 2,31 Md | 2009 | 7,9 Md |
| 1960 | 3,55 Md | 1985 | 2,14 Md | 2010 | 8,79 Md |
| 1961 | 4,03 Md | 1986 | 2,17 Md | 2011 | 9,46 Md |
| 1962 | 4,38 Md | 1987 | 1,77 Md | 2012 | 8,99 Md |
| 1963 | 4,95 Md | 1988 | 1,78 Md | 2013 | 9,28 Md |
| 1964 | 5,2 Md | 1989 | 1,49 Md | 2014 | 10,3 Md |
| 1965 | 5,53 Md | 1990 | 1,54 Md | 2015 | 10,2 Md |
| 1966 | 5,98 Md | 1991 | 1,72 Md | 2016 | 9,16 Md |
| 1967 | 6,28 Md | 1992 | 1,88 Md | 2017 | 9,98 Md |
| 1968 | 7,23 Md | 1993 | 2,12 Md | 2018 | 12 Md |
| 1969 | 7,98 Md | 1994 | 2,25 Md | 2019 | 11,8 Md |
| 1970 | 8,53 Md | 1995 | 2,72 Md | 2020 | 13,7 Md |
| 1971 | 9,45 Md | 1996 | 3,08 Md | 2021 | 15,3 Md |
| 1972 | 10,1 Md | 1997 | 3,19 Md | 2022 | 15,3 Md |
| 1973 | 12,1 Md | 1998 | 3,49 Md | 2023 | 26,5 Md |
| 1974 | 13,2 Md | 1999 | 3,23 Md | 2024 | 34,5 Md |
| 1975 | 14,3 Md | 2000 | 3,15 Md | 2025 | 46,8 Md |
Tableau de données
| 1980 | 2,7% | 1996 | 1,9% | 2012 | 1,8% |
| 1981 | 2,9% | 1997 | 2% | 2013 | 1,8% |
| 1982 | 3,2% | 1998 | 2% | 2014 | 1,9% |
| 1983 | 2,9% | 1999 | 1,9% | 2015 | 2,1% |
| 1984 | 3,1% | 2000 | 1,8% | 2016 | 1,9% |
| 1985 | 3% | 2001 | 1,9% | 2017 | 1,9% |
| 1986 | 2,9% | 2002 | 1,9% | 2018 | 2% |
| 1987 | 2,8% | 2003 | 1,9% | 2019 | 2% |
| 1988 | 2,6% | 2004 | 1,9% | 2020 | 2,3% |
| 1989 | 1,8% | 2005 | 1,9% | 2021 | 2,2% |
| 1990 | 2,6% | 2006 | 1,9% | 2022 | 2,2% |
| 1991 | 2,3% | 2007 | 2% | 2023 | 3,3% |
| 1992 | 2,2% | 2008 | 1,7% | 2024 | 3,8% |
| 1993 | 2,5% | 2009 | 1,8% | 2025 | 4,5% |
| 1994 | 2,3% | 2010 | 1,8% | | |
| 1995 | 1,9% | 2011 | 1,8% | | |