Tabella dei dati
| 1990 | 15,3% | 2003 | 18,4% | 2016 | 24,4% |
| 1991 | 16,2% | 2004 | 18,7% | 2017 | 25,6% |
| 1992 | 16,5% | 2005 | 19% | 2018 | 24,9% |
| 1993 | 17,1% | 2006 | 20% | 2019 | 24,7% |
| 1994 | 18% | 2007 | 20,5% | 2020 | 24,6% |
| 1995 | 18,4% | 2008 | 20,7% | 2021 | 25,6% |
| 1996 | 18,3% | 2009 | 19,3% | 2022 | 26% |
| 1997 | 16,7% | 2010 | 20,6% | 2023 | 25,8% |
| 1998 | 16,3% | 2011 | 20,8% | 2024 | 26,8% |
| 1999 | 16,6% | 2012 | 23,6% | 2025 | 27,4% |
| 2000 | 17,5% | 2013 | 24% | 2026 | 27,6% |
| 2001 | 16,7% | 2014 | 23,6% | | |
| 2002 | 17% | 2015 | 23,5% | | |
Tabella dei dati
| 1990 | 735 mln | 2003 | 2,44 mld | 2016 | 5,89 mld |
| 1991 | 852 mln | 2004 | 2,57 mld | 2017 | 6,39 mld |
| 1992 | 957 mln | 2005 | 2,79 mld | 2018 | 6,48 mld |
| 1993 | 1,14 mld | 2006 | 3,2 mld | 2019 | 6,64 mld |
| 1994 | 1,38 mld | 2007 | 3,49 mld | 2020 | 6,12 mld |
| 1995 | 1,64 mld | 2008 | 3,73 mld | 2021 | 7,42 mld |
| 1996 | 1,76 mld | 2009 | 3,4 mld | 2022 | 8,28 mld |
| 1997 | 1,7 mld | 2010 | 3,81 mld | 2023 | 8,75 mld |
| 1998 | 1,79 mld | 2011 | 4,22 mld | 2024 | 9,48 mld |
| 1999 | 1,87 mld | 2012 | 5,04 mld | 2025 | 10,2 mld |
| 2000 | 2,06 mld | 2013 | 5,29 mld | 2026 | 11 mld |
| 2001 | 2,06 mld | 2014 | 5,33 mld | | |
| 2002 | 2,15 mld | 2015 | 5,5 mld | | |
Tabella dei dati
| 1990 | 15,9% | 2003 | 22,6% | 2016 | 27,5% |
| 1991 | 18,5% | 2004 | 21,5% | 2017 | 28,1% |
| 1992 | 20,8% | 2005 | 22,4% | 2018 | 27,6% |
| 1993 | 18,5% | 2006 | 23,4% | 2019 | 27,8% |
| 1994 | 18,9% | 2007 | 22,8% | 2020 | 32,7% |
| 1995 | 18,6% | 2008 | 24,5% | 2021 | 31,1% |
| 1996 | 21% | 2009 | 26% | 2022 | 28,7% |
| 1997 | 18,6% | 2010 | 25,6% | 2023 | 30,5% |
| 1998 | 19,3% | 2011 | 25,3% | 2024 | 31,4% |
| 1999 | 19,7% | 2012 | 27,4% | 2025 | 30,2% |
| 2000 | 21% | 2013 | 28,5% | 2026 | 29,6% |
| 2001 | 21,7% | 2014 | 27,6% | | |
| 2002 | 22,5% | 2015 | 27,1% | | |
Tabella dei dati
| 1990 | 765 mln | 2003 | 3 mld | 2016 | 6,64 mld |
| 1991 | 974 mln | 2004 | 2,95 mld | 2017 | 7,02 mld |
| 1992 | 1,21 mld | 2005 | 3,3 mld | 2018 | 7,18 mld |
| 1993 | 1,24 mld | 2006 | 3,75 mld | 2019 | 7,47 mld |
| 1994 | 1,45 mld | 2007 | 3,88 mld | 2020 | 8,15 mld |
| 1995 | 1,66 mld | 2008 | 4,42 mld | 2021 | 9,03 mld |
| 1996 | 2,02 mld | 2009 | 4,57 mld | 2022 | 9,13 mld |
| 1997 | 1,9 mld | 2010 | 4,72 mld | 2023 | 10,3 mld |
| 1998 | 2,11 mld | 2011 | 5,13 mld | 2024 | 11,1 mld |
| 1999 | 2,22 mld | 2012 | 5,86 mld | 2025 | 11,3 mld |
| 2000 | 2,47 mld | 2013 | 6,27 mld | 2026 | 11,8 mld |
| 2001 | 2,66 mld | 2014 | 6,24 mld | | |
| 2002 | 2,85 mld | 2015 | 6,35 mld | | |