Tableau de données
| 1970 | 104 M | 1989 | 1,41 Md | 2008 | 7,45 Md |
| 1971 | 128 M | 1990 | 1,8 Md | 2009 | 7,54 Md |
| 1972 | 150 M | 1991 | 2,02 Md | 2010 | 8,11 Md |
| 1973 | 199 M | 1992 | 2,33 Md | 2011 | 8,92 Md |
| 1974 | 226 M | 1993 | 2,48 Md | 2012 | 9,17 Md |
| 1975 | 269 M | 1994 | 2,8 Md | 2013 | 9,35 Md |
| 1976 | 306 M | 1995 | 3,67 Md | 2014 | 9,6 Md |
| 1977 | 381 M | 1996 | 4,1 Md | 2015 | 9,38 Md |
| 1978 | 419 M | 1997 | 4,46 Md | 2016 | 9,88 Md |
| 1979 | 452 M | 1998 | 4,47 Md | 2017 | 10,2 Md |
| 1980 | 560 M | 1999 | 4,49 Md | 2018 | 10,6 Md |
| 1981 | 681 M | 2000 | 4,33 Md | 2019 | 10,4 Md |
| 1982 | 738 M | 2001 | 4,31 Md | 2020 | 9,8 Md |
| 1983 | 733 M | 2002 | 4,53 Md | 2021 | 11 Md |
| 1984 | 919 M | 2003 | 4,72 Md | 2022 | 12 Md |
| 1985 | 1,05 Md | 2004 | 5,04 Md | 2023 | 14 Md |
| 1986 | 1,02 Md | 2005 | 5,46 Md | 2024 | 15,3 Md |
| 1987 | 1,05 Md | 2006 | 5,83 Md | 2025 | 17,4 Md |
| 1988 | 1,21 Md | 2007 | 6,52 Md | | |
Tableau de données
| 1970 | 5,4% | 1989 | 4,5% | 2008 | 3,9% |
| 1971 | 5,6% | 1990 | 4,6% | 2009 | 3,9% |
| 1972 | 5,1% | 1991 | 4,4% | 2010 | 3,4% |
| 1973 | 4,7% | 1992 | 4,5% | 2011 | 3,2% |
| 1974 | 4,3% | 1993 | 4,1% | 2012 | 3,1% |
| 1975 | 4,6% | 1994 | 3,8% | 2013 | 3% |
| 1976 | 5% | 1995 | 4,2% | 2014 | 3% |
| 1977 | 5,7% | 1996 | 4,3% | 2015 | 3% |
| 1978 | 5,2% | 1997 | 4,5% | 2016 | 3,1% |
| 1979 | 4,7% | 1998 | 5,2% | 2017 | 3% |
| 1980 | 4,6% | 1999 | 5,2% | 2018 | 2,8% |
| 1981 | 4,7% | 2000 | 4,5% | 2019 | 2,8% |
| 1982 | 4,7% | 2001 | 4,8% | 2020 | 2,8% |
| 1983 | 4,1% | 2002 | 4,9% | 2021 | 2,5% |
| 1984 | 4,7% | 2003 | 4,8% | 2022 | 2,4% |
| 1985 | 5,7% | 2004 | 4,4% | 2023 | 2,8% |
| 1986 | 5,4% | 2005 | 4,3% | 2024 | 2,8% |
| 1987 | 4,9% | 2006 | 3,9% | 2025 | 3% |
| 1988 | 4,5% | 2007 | 3,6% | | |