Tabella dei dati
| 1980 | 25,7% | 1996 | 28,4% | 2012 | 30,1% |
| 1981 | 27% | 1997 | 29% | 2013 | 30,8% |
| 1982 | 27,3% | 1998 | 28,2% | 2014 | 32,2% |
| 1983 | 27,3% | 1999 | 28,5% | 2015 | 32,9% |
| 1984 | 27,9% | 2000 | 28,3% | 2016 | 32,9% |
| 1985 | 28,4% | 2001 | 28,6% | 2017 | 32,8% |
| 1986 | 28,4% | 2002 | 27,6% | 2018 | 33,5% |
| 1987 | 29,6% | 2003 | 27,3% | 2019 | 33,4% |
| 1988 | 29,7% | 2004 | 28,1% | 2020 | 34,5% |
| 1989 | 29,7% | 2005 | 28,8% | 2021 | 35% |
| 1990 | 30,7% | 2006 | 29,7% | 2022 | 36% |
| 1991 | 30,3% | 2007 | 29,9% | 2023 | 35,4% |
| 1992 | 30,2% | 2008 | 29,7% | 2024 | 35,6% |
| 1993 | 29,1% | 2009 | 28,7% | 2025 | 35,8% |
| 1994 | 28,4% | 2010 | 28,4% | 2026 | 35,6% |
| 1995 | 28,6% | 2011 | 29,4% | | |
Tabella dei dati
| 1980 | 67,41 mila mld | 1996 | 154,98 mila mld | 2012 | 152,29 mila mld |
| 1981 | 75,95 mila mld | 1997 | 160,66 mila mld | 2013 | 158,44 mila mld |
| 1982 | 80,58 mila mld | 1998 | 153,4 mila mld | 2014 | 170,02 mila mld |
| 1983 | 84,19 mila mld | 1999 | 152,16 mila mld | 2015 | 180,81 mila mld |
| 1984 | 91,35 mila mld | 2000 | 153,51 mila mld | 2016 | 182,95 mila mld |
| 1985 | 98,83 mila mld | 2001 | 154,16 mila mld | 2017 | 185,64 mila mld |
| 1986 | 103,74 mila mld | 2002 | 147,2 mila mld | 2018 | 190,73 mila mld |
| 1987 | 113,03 mila mld | 2003 | 144,65 mila mld | 2019 | 190,87 mila mld |
| 1988 | 121,73 mila mld | 2004 | 150,16 mila mld | 2020 | 191,3 mila mld |
| 1989 | 130,5 mila mld | 2005 | 154,9 mila mld | 2021 | 200,9 mila mld |
| 1990 | 144,93 mila mld | 2006 | 160,73 mila mld | 2022 | 210,45 mila mld |
| 1991 | 152,21 mila mld | 2007 | 163,07 mila mld | 2023 | 217,96 mila mld |
| 1992 | 155,62 mila mld | 2008 | 158,31 mila mld | 2024 | 226,06 mila mld |
| 1993 | 150,07 mila mld | 2009 | 143,38 mila mld | 2025 | 237,65 mila mld |
| 1994 | 148,21 mila mld | 2010 | 144,85 mila mld | 2026 | 241,02 mila mld |
| 1995 | 151,84 mila mld | 2011 | 147,42 mila mld | | |
Tabella dei dati
| 1980 | 30,1% | 1996 | 33,1% | 2012 | 38,4% |
| 1981 | 30,8% | 1997 | 32,4% | 2013 | 38,4% |
| 1982 | 31% | 1998 | 38,1% | 2014 | 37,8% |
| 1983 | 31,1% | 1999 | 35,2% | 2015 | 36,6% |
| 1984 | 30,5% | 2000 | 35,4% | 2016 | 36,5% |
| 1985 | 29,7% | 2001 | 34,7% | 2017 | 35,9% |
| 1986 | 29,7% | 2002 | 34,9% | 2018 | 36% |
| 1987 | 30% | 2003 | 34,6% | 2019 | 36,4% |
| 1988 | 29,2% | 2004 | 33,3% | 2020 | 43,6% |
| 1989 | 28,5% | 2005 | 33,2% | 2021 | 41,4% |
| 1990 | 28,8% | 2006 | 32,7% | 2022 | 40,2% |
| 1991 | 28,6% | 2007 | 32,8% | 2023 | 37,8% |
| 1992 | 29,6% | 2008 | 33,7% | 2024 | 37,3% |
| 1993 | 31,4% | 2009 | 38,3% | 2025 | 36,9% |
| 1994 | 32,1% | 2010 | 37,4% | 2026 | 37,6% |
| 1995 | 32,8% | 2011 | 38,4% | | |
Tabella dei dati
| 1980 | 78,72 mila mld | 1996 | 180,95 mila mld | 2012 | 193,85 mila mld |
| 1981 | 86,53 mila mld | 1997 | 179,72 mila mld | 2013 | 197,65 mila mld |
| 1982 | 91,58 mila mld | 1998 | 207,25 mila mld | 2014 | 199,49 mila mld |
| 1983 | 96,11 mila mld | 1999 | 187,82 mila mld | 2015 | 200,79 mila mld |
| 1984 | 99,74 mila mld | 2000 | 192,49 mila mld | 2016 | 202,83 mila mld |
| 1985 | 103,5 mila mld | 2001 | 187,11 mila mld | 2017 | 202,86 mila mld |
| 1986 | 108,6 mila mld | 2002 | 185,63 mila mld | 2018 | 204,63 mila mld |
| 1987 | 114,37 mila mld | 2003 | 183,6 mila mld | 2019 | 208,28 mila mld |
| 1988 | 119,75 mila mld | 2004 | 178,3 mila mld | 2020 | 241,37 mila mld |
| 1989 | 125,22 mila mld | 2005 | 178,51 mila mld | 2021 | 237,17 mila mld |
| 1990 | 135,89 mila mld | 2006 | 176,92 mila mld | 2022 | 235,18 mila mld |
| 1991 | 143,98 mila mld | 2007 | 178,63 mila mld | 2023 | 232,71 mila mld |
| 1992 | 152,73 mila mld | 2008 | 180 mila mld | 2024 | 236,64 mila mld |
| 1993 | 162,13 mila mld | 2009 | 191,44 mila mld | 2025 | 244,65 mila mld |
| 1994 | 167,5 mila mld | 2010 | 191,02 mila mld | 2026 | 254,88 mila mld |
| 1995 | 174,25 mila mld | 2011 | 192,62 mila mld | | |