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